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          <maturityDt>2050-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01375000</annualizedRt>
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          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.125% 05/15/2048</title>
        <cusip>912810SC3</cusip>
        <identifiers>
          <isin value="US912810SC36"/>
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        <balance>88953000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>66607033.25000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2048-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03125000</annualizedRt>
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          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.5% 02/15/2044</title>
        <cusip>912810TZ1</cusip>
        <identifiers>
          <isin value="US912810TZ12"/>
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        <balance>86800000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>83199155.82000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
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          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04500000</annualizedRt>
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          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.625% 02/15/2053</title>
        <cusip>912810TN8</cusip>
        <identifiers>
          <isin value="US912810TN81"/>
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        <balance>91600000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>73319359.60000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2053-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03625000</annualizedRt>
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          <isPaidKind>N</isPaidKind>
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        <securityLending>
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          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 1.875% 02/15/2051</title>
        <cusip>912810SU3</cusip>
        <identifiers>
          <isin value="US912810SU34"/>
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        <balance>185960000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>102299792.65000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2051-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01875000</annualizedRt>
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          <isPaidKind>N</isPaidKind>
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        <securityLending>
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          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.625% 02/15/2040</title>
        <cusip>912810QE1</cusip>
        <identifiers>
          <isin value="US912810QE10"/>
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        <balance>9750000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>9765996.05000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2040-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04625000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.25% 02/15/2052</title>
        <cusip>912810TD0</cusip>
        <identifiers>
          <isin value="US912810TD00"/>
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        <balance>171450000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>102488256.29000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2052-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02250000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.375% 11/15/2049</title>
        <cusip>912810SK5</cusip>
        <identifiers>
          <isin value="US912810SK51"/>
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        <balance>23745000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>15027987.77000000</valUSD>
        <pctVal>0.299673547459</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2049-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02375000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4% 11/15/2052</title>
        <cusip>912810TL2</cusip>
        <identifiers>
          <isin value="US912810TL26"/>
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        <balance>101200000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>86850155.74000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2052-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04000000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 1.625% 11/15/2050</title>
        <cusip>912810SS8</cusip>
        <identifiers>
          <isin value="US912810SS87"/>
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        <balance>130631000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>67397431.56000000</valUSD>
        <pctVal>1.343974171017</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2050-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01625000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.25% 08/15/2049</title>
        <cusip>912810SJ8</cusip>
        <identifiers>
          <isin value="US912810SJ88"/>
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        <balance>25759000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>15896120.52000000</valUSD>
        <pctVal>0.316985008237</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2049-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02250000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.625% 05/15/2044</title>
        <cusip>912810UB2</cusip>
        <identifiers>
          <isin value="US912810UB25"/>
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        <balance>45250000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>44016230.70000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2044-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04625000</annualizedRt>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.75% 02/15/2037</title>
        <cusip>912810PT9</cusip>
        <identifiers>
          <isin value="US912810PT97"/>
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        <balance>35578000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>37019186.86000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2037-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04750000</annualizedRt>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.75% 08/15/2042</title>
        <cusip>912810QX9</cusip>
        <identifiers>
          <isin value="US912810QX90"/>
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        <balance>7787000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>5915686.56000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02750000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.75% 08/15/2055</title>
        <cusip>912810UM8</cusip>
        <identifiers>
          <isin value="US912810UM89"/>
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        <balance>3250000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>3162656.25000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2055-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04750000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.5% 02/15/2045</title>
        <cusip>912810RK6</cusip>
        <identifiers>
          <isin value="US912810RK60"/>
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        <balance>29414000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>20493285.31000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2045-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02500000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.75% 11/15/2042</title>
        <cusip>912810QY7</cusip>
        <identifiers>
          <isin value="US912810QY73"/>
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        <balance>30225000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>22844668.87000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02750000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 1.875% 11/15/2051</title>
        <cusip>912810TB4</cusip>
        <identifiers>
          <isin value="US912810TB44"/>
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        <balance>248250000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>135102304.69000000</valUSD>
        <pctVal>2.694079043452</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2051-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01875000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.625% 05/15/2054</title>
        <cusip>912810UA4</cusip>
        <identifiers>
          <isin value="US912810UA42"/>
        </identifiers>
        <balance>134500000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>128137519.20000000</valUSD>
        <pctVal>2.555194050529</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2054-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04625000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2% 02/15/2050</title>
        <cusip>912810SL3</cusip>
        <identifiers>
          <isin value="US912810SL35"/>
        </identifiers>
        <balance>79766900.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>46046688.98000000</valUSD>
        <pctVal>0.918218383365</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2050-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.625% 11/15/2044</title>
        <cusip>912810UF3</cusip>
        <identifiers>
          <isin value="US912810UF39"/>
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        <balance>64750000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>62812558.27000000</valUSD>
        <pctVal>1.252547077484</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2044-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04625000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3% 02/15/2048</title>
        <cusip>912810SA7</cusip>
        <identifiers>
          <isin value="US912810SA79"/>
        </identifiers>
        <balance>77947000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>57178387.42000000</valUSD>
        <pctVal>1.140195910351</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2048-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.125% 02/15/2042</title>
        <cusip>912810QU5</cusip>
        <identifiers>
          <isin value="US912810QU51"/>
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        <balance>106856000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>86666059.95000000</valUSD>
        <pctVal>1.728210458182</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03125000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.125% 02/15/2043</title>
        <cusip>912810QZ4</cusip>
        <identifiers>
          <isin value="US912810QZ49"/>
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        <balance>47347000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>37761081.87000000</valUSD>
        <pctVal>0.752994847552</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03125000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.75% 11/15/2053</title>
        <cusip>912810TV0</cusip>
        <identifiers>
          <isin value="US912810TV08"/>
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        <balance>124350000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>120881801.40000000</valUSD>
        <pctVal>2.410507567829</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2053-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04750000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.25% 05/15/2041</title>
        <cusip>912810SY5</cusip>
        <identifiers>
          <isin value="US912810SY55"/>
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        <balance>102827000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>74513425.14000000</valUSD>
        <pctVal>1.485874408924</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2041-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02250000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.875% 05/15/2049</title>
        <cusip>912810SH2</cusip>
        <identifiers>
          <isin value="US912810SH23"/>
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        <balance>52790000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>37330366.15000000</valUSD>
        <pctVal>0.744405932673</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2049-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02875000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.75% 11/15/2043</title>
        <cusip>912810RD2</cusip>
        <identifiers>
          <isin value="US912810RD28"/>
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        <balance>80368000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>69584246.67000000</valUSD>
        <pctVal>1.387581515638</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03750000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 1.875% 02/15/2041</title>
        <cusip>912810SW9</cusip>
        <identifiers>
          <isin value="US912810SW99"/>
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        <balance>141748000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>97412990.43000000</valUSD>
        <pctVal>1.942515315927</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2041-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01875000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 5% 05/15/2037</title>
        <cusip>912810PU6</cusip>
        <identifiers>
          <isin value="US912810PU60"/>
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        <balance>10019000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>10645187.50000000</valUSD>
        <pctVal>0.212275997979</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2037-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.05000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.75% 08/15/2047</title>
        <cusip>912810RY6</cusip>
        <identifiers>
          <isin value="US912810RY64"/>
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        <balance>21492000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>15137588.02000000</valUSD>
        <pctVal>0.301859089278</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02750000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.375% 08/15/2042</title>
        <cusip>912810TK4</cusip>
        <identifiers>
          <isin value="US912810TK43"/>
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        <balance>34950000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>29150484.38000000</valUSD>
        <pctVal>0.581290668984</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03375000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.5% 05/15/2046</title>
        <cusip>912810RS9</cusip>
        <identifiers>
          <isin value="US912810RS96"/>
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        <balance>41212000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>28175485.52000000</valUSD>
        <pctVal>0.561848187954</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2046-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02500000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2% 08/15/2051</title>
        <cusip>912810SZ2</cusip>
        <identifiers>
          <isin value="US912810SZ21"/>
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        <balance>104604000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>59035882.50000000</valUSD>
        <pctVal>1.177236274539</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2051-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.125% 08/15/2044</title>
        <cusip>912810UD8</cusip>
        <identifiers>
          <isin value="US912810UD80"/>
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        <curCd>USD</curCd>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3% 08/15/2048</title>
        <cusip>912810SD1</cusip>
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          <isin value="US912810SD19"/>
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        <curCd>USD</curCd>
        <valUSD>77056681.58000000</valUSD>
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        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.5% 02/15/2036</title>
        <cusip>912810FT0</cusip>
        <identifiers>
          <isin value="US912810FT08"/>
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        <curCd>USD</curCd>
        <valUSD>10887009.38000000</valUSD>
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        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <couponKind>Fixed</couponKind>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.875% 11/15/2046</title>
        <cusip>912810RU4</cusip>
        <identifiers>
          <isin value="US912810RU43"/>
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        <balance>72529000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>52810178.13000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2046-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02875000</annualizedRt>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.25% 11/15/2040</title>
        <cusip>912810QL5</cusip>
        <identifiers>
          <isin value="US912810QL52"/>
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        <balance>22999000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>21944280.12000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2040-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04250000</annualizedRt>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.375% 11/15/2048</title>
        <cusip>912810SE9</cusip>
        <identifiers>
          <isin value="US912810SE91"/>
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        <balance>64444000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>50288975.93000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2048-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03375000</annualizedRt>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3% 02/15/2049</title>
        <cusip>912810SF6</cusip>
        <identifiers>
          <isin value="US912810SF66"/>
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        <balance>43250000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>31415380.97000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2049-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03000000</annualizedRt>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.375% 05/15/2051</title>
        <cusip>912810SX7</cusip>
        <identifiers>
          <isin value="US912810SX72"/>
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        <balance>130747000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>81241895.99000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2051-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02375000</annualizedRt>
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        <securityLending>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 1.125% 05/15/2040</title>
        <cusip>912810SR0</cusip>
        <identifiers>
          <isin value="US912810SR05"/>
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        <balance>21709000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>13509612.52000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2040-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01125000</annualizedRt>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 1.375% 11/15/2040</title>
        <cusip>912810ST6</cusip>
        <identifiers>
          <isin value="US912810ST60"/>
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        <balance>102088000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>65061161.19000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01375000</annualizedRt>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3% 05/15/2042</title>
        <cusip>912810QW1</cusip>
        <identifiers>
          <isin value="US912810QW18"/>
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        <curCd>USD</curCd>
        <valUSD>45609972.60000000</valUSD>
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        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03000000</annualizedRt>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.75% 11/15/2047</title>
        <cusip>912810RZ3</cusip>
        <identifiers>
          <isin value="US912810RZ30"/>
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        <balance>25375000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>17818998.96000000</valUSD>
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        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
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          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02750000</annualizedRt>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.875% 05/15/2052</title>
        <cusip>912810TG3</cusip>
        <identifiers>
          <isin value="US912810TG31"/>
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        <curCd>USD</curCd>
        <valUSD>105331864.85000000</valUSD>
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        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
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          <couponKind>Fixed</couponKind>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.5% 05/15/2038</title>
        <cusip>912810PX0</cusip>
        <identifiers>
          <isin value="US912810PX00"/>
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        <curCd>USD</curCd>
        <valUSD>17336962.50000000</valUSD>
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        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2038-05-15</maturityDt>
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          <annualizedRt>0.04500000</annualizedRt>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.375% 11/15/2039</title>
        <cusip>912810QD3</cusip>
        <identifiers>
          <isin value="US912810QD37"/>
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        <curCd>USD</curCd>
        <valUSD>3174716.81000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <couponKind>Fixed</couponKind>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.5% 11/15/2054</title>
        <cusip>912810UE6</cusip>
        <identifiers>
          <isin value="US912810UE63"/>
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        <curCd>USD</curCd>
        <valUSD>93114286.86000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2054-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04500000</annualizedRt>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.375% 02/15/2038</title>
        <cusip>912810PW2</cusip>
        <identifiers>
          <isin value="US912810PW27"/>
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        <balance>24500000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>24436836.06000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2038-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04375000</annualizedRt>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 1.125% 08/15/2040</title>
        <cusip>912810SQ2</cusip>
        <identifiers>
          <isin value="US912810SQ22"/>
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        <balance>57054000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>35123868.75000000</valUSD>
        <pctVal>0.700406102926</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2040-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01125000</annualizedRt>
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          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4% 11/15/2042</title>
        <cusip>912810TM0</cusip>
        <identifiers>
          <isin value="US912810TM09"/>
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        <balance>55250000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>50050888.81000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04000000</annualizedRt>
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          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.25% 08/15/2054</title>
        <cusip>912810UC0</cusip>
        <identifiers>
          <isin value="US912810UC08"/>
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        <balance>128050000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>114564734.38000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2054-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04250000</annualizedRt>
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          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.375% 05/15/2044</title>
        <cusip>912810RG5</cusip>
        <identifiers>
          <isin value="US912810RG58"/>
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        <balance>22229300.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>18112537.90000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2044-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03375000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UST NOTES</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UST NOTES 4.75% 02/15/2045</title>
        <cusip>912810UJ5</cusip>
        <identifiers>
          <isin value="US912810UJ50"/>
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        <balance>36850000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>36303007.81000000</valUSD>
        <pctVal>0.723919349707</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2045-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04750000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3% 08/15/2052</title>
        <cusip>912810TJ7</cusip>
        <identifiers>
          <isin value="US912810TJ79"/>
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        <balance>115000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>81326562.50000000</valUSD>
        <pctVal>1.621735382012</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2052-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 5% 05/15/2045</title>
        <cusip>912810UL0</cusip>
        <identifiers>
          <isin value="US912810UL07"/>
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        <balance>58950000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>59935570.31000000</valUSD>
        <pctVal>1.195176975700</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2045-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.05000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.25% 05/15/2039</title>
        <cusip>912810QB7</cusip>
        <identifiers>
          <isin value="US912810QB70"/>
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        <balance>22331000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>21686366.78000000</valUSD>
        <pctVal>0.432448479725</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2039-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04250000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Fidelity Revere Street Trust</name>
        <lei>549300BDV45LJNXBZC55</lei>
        <title>Fidelity Cash Central Fund</title>
        <cusip>31635A105</cusip>
        <identifiers>
          <isin value="US31635A1051"/>
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        <balance>46424259.47600000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>46433544.33000000</valUSD>
        <pctVal>0.925932677312</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.75% 08/15/2041</title>
        <cusip>912810QS0</cusip>
        <identifiers>
          <isin value="US912810QS06"/>
        </identifiers>
        <balance>95131000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>84785503.75000000</valUSD>
        <pctVal>1.690710231520</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2041-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03750000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.625% 02/15/2044</title>
        <cusip>912810RE0</cusip>
        <identifiers>
          <isin value="US912810RE01"/>
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        <balance>73325000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>62194493.77000000</valUSD>
        <pctVal>1.240222235056</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2044-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03625000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2% 11/15/2041</title>
        <cusip>912810TC2</cusip>
        <identifiers>
          <isin value="US912810TC27"/>
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        <balance>77050000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>52830415.82000000</valUSD>
        <pctVal>1.053492880407</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2041-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3% 11/15/2045</title>
        <cusip>912810RP5</cusip>
        <identifiers>
          <isin value="US912810RP57"/>
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        <balance>62732000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>47303848.75000000</valUSD>
        <pctVal>0.943287443426</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2045-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 1.75% 08/15/2041</title>
        <cusip>912810TA6</cusip>
        <identifiers>
          <isin value="US912810TA60"/>
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        <balance>87455000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>57932105.52000000</valUSD>
        <pctVal>1.155225825219</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2041-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01750000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.25% 02/15/2054</title>
        <cusip>912810TX6</cusip>
        <identifiers>
          <isin value="US912810TX63"/>
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        <balance>104400000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>93405375.00000000</valUSD>
        <pctVal>1.862599338410</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2054-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04250000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.75% 05/15/2055</title>
        <cusip>912810UK2</cusip>
        <identifiers>
          <isin value="US912810UK24"/>
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        <balance>101800000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>99032312.50000000</valUSD>
        <pctVal>1.974806265097</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2055-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04750000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.875% 08/15/2045</title>
        <cusip>912810RN0</cusip>
        <identifiers>
          <isin value="US912810RN00"/>
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        <balance>67587500.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>49980428.39000000</valUSD>
        <pctVal>0.996661196988</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2045-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02875000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3% 02/15/2047</title>
        <cusip>912810RV2</cusip>
        <identifiers>
          <isin value="US912810RV26"/>
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        <balance>40390000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>30002196.88000000</valUSD>
        <pctVal>0.598274693073</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03000000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.125% 08/15/2053</title>
        <cusip>912810TT5</cusip>
        <identifiers>
          <isin value="US912810TT51"/>
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        <balance>148100000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>129708987.91000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2053-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04125000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.625% 05/15/2053</title>
        <cusip>912810TR9</cusip>
        <identifiers>
          <isin value="US912810TR95"/>
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        <balance>109600000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>87632905.98000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2053-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03625000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3% 05/15/2045</title>
        <cusip>912810RM2</cusip>
        <identifiers>
          <isin value="US912810RM27"/>
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        <balance>73664000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>55846520.00000000</valUSD>
        <pctVal>1.113637102838</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2045-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03000000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.375% 05/15/2041</title>
        <cusip>912810QQ4</cusip>
        <identifiers>
          <isin value="US912810QQ40"/>
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        <balance>60103000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>57940700.81000000</valUSD>
        <pctVal>1.155397224150</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2041-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04375000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3% 11/15/2044</title>
        <cusip>912810RJ9</cusip>
        <identifiers>
          <isin value="US912810RJ97"/>
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        <balance>65587000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>50038269.58000000</valUSD>
        <pctVal>0.997814609864</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2044-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3% 05/15/2047</title>
        <cusip>912810RX8</cusip>
        <identifiers>
          <isin value="US912810RX81"/>
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        <balance>11507000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>8521023.37000000</valUSD>
        <pctVal>0.169917978398</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2047-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 1.25% 05/15/2050</title>
        <cusip>912810SN9</cusip>
        <identifiers>
          <isin value="US912810SN90"/>
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        <balance>12900000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>6078621.13000000</valUSD>
        <pctVal>0.121213963277</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2050-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.01250000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.875% 05/15/2043</title>
        <cusip>912810RB6</cusip>
        <identifiers>
          <isin value="US912810RB61"/>
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        <balance>92418000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>70678109.07000000</valUSD>
        <pctVal>1.409394258027</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02875000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.375% 08/15/2043</title>
        <cusip>912810TU2</cusip>
        <identifiers>
          <isin value="US912810TU25"/>
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        <balance>106200000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>100417078.66000000</valUSD>
        <pctVal>2.002419927945</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04375000</annualizedRt>
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          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.875% 05/15/2043</title>
        <cusip>912810TS7</cusip>
        <identifiers>
          <isin value="US912810TS78"/>
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        <balance>76700000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>67955900.87000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03875000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.75% 11/15/2043</title>
        <cusip>912810TW8</cusip>
        <identifiers>
          <isin value="US912810TW80"/>
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        <balance>81000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>80250117.39000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04750000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.625% 08/15/2043</title>
        <cusip>912810RC4</cusip>
        <identifiers>
          <isin value="US912810RC45"/>
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        <balance>105903000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>90323675.33000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
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          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03625000</annualizedRt>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.125% 11/15/2041</title>
        <cusip>912810QT8</cusip>
        <identifiers>
          <isin value="US912810QT88"/>
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        <balance>64820000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>52840959.99000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2041-11-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03125000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 3.25% 05/15/2042</title>
        <cusip>912810TH1</cusip>
        <identifiers>
          <isin value="US912810TH14"/>
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        <balance>140700000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>115698269.88000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-05-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.03250000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.5% 02/15/2046</title>
        <cusip>912810RQ3</cusip>
        <identifiers>
          <isin value="US912810RQ31"/>
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        <balance>11773000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>8073242.80000000</valUSD>
        <pctVal>0.160988772842</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2046-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02500000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.375% 02/15/2042</title>
        <cusip>912810TF5</cusip>
        <identifiers>
          <isin value="US912810TF57"/>
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        <balance>79900000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>57780268.27000000</valUSD>
        <pctVal>1.152198034137</pctVal>
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        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2042-02-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02375000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
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          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 4.5% 08/15/2039</title>
        <cusip>912810QC5</cusip>
        <identifiers>
          <isin value="US912810QC53"/>
        </identifiers>
        <balance>8833000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>8770202.85000000</valUSD>
        <pctVal>0.174886873760</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2039-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.04500000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>UNITED STATES TREASURY BOND</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>UNITED STATES TREASURY BOND 2.25% 08/15/2046</title>
        <cusip>912810RT7</cusip>
        <identifiers>
          <isin value="US912810RT79"/>
        </identifiers>
        <balance>52963000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>34314230.91000000</valUSD>
        <pctVal>0.684261090874</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2046-08-15</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>0.02250000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <explntrNotes>
      <explntrNote note="As of March 2025, monthly returns presented in Item B.5.a. have been calculated without deducting any applicable sales loads or redemption fees." noteItem="B.5.a"/>
    </explntrNotes>
    <signature>
      <ncom:dateSigned>2025-09-30</ncom:dateSigned>
      <ncom:nameOfApplicant>Laura M. Del Prato</ncom:nameOfApplicant>
      <ncom:signature>Laura M. Del Prato</ncom:signature>
      <ncom:signerName>Laura M. Del Prato</ncom:signerName>
      <ncom:title>President and Treasurer</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
