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        <fairValLevel>2</fairValLevel>
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      <invstOrSec>
        <name>Auburn University</name>
        <lei>N/A</lei>
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          <couponKind>Fixed</couponKind>
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      <invstOrSec>
        <name>Puerto Rico Electric Power Authority</name>
        <lei>5493003BRB67HF8ST418</lei>
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          <isin value="US74526QQ544"/>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2026-07-01</maturityDt>
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      <invstOrSec>
        <name>County of Hamilton OH</name>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2033-08-15</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>Prichard Water Works &amp; Sewer Board</name>
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          <isin value="US741530JB63"/>
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        <curCd>USD</curCd>
        <valUSD>763581.00000000</valUSD>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2044-11-01</maturityDt>
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          <annualizedRt>4.00000000</annualizedRt>
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        <name>Puerto Rico Electric Power Authority</name>
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          <isin value="US74526QV338"/>
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        <curCd>USD</curCd>
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        <assetCat>DBT</assetCat>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2042-07-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>Puerto Rico Electric Power Authority</name>
        <lei>5493003BRB67HF8ST418</lei>
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          <isin value="US74526QJ523"/>
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        <assetCat>DBT</assetCat>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2021-07-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>Puerto Rico Electric Power Authority</name>
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          <isin value="US74526QPQ90"/>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2032-07-01</maturityDt>
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      <invstOrSec>
        <name>University of Alabama (The)</name>
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          <isin value="US914025FZ98"/>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2036-09-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>New York Liberty Development Corp.</name>
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          <isin value="US649519CK93"/>
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        <invCountry>US</invCountry>
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          <maturityDt>2040-09-15</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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        <name>Shelby County Board of Education</name>
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        <name>Regional Transportation District</name>
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        <name>University of South Alabama</name>
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        <name>Puerto Rico Sales Tax Financing Corp.</name>
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        <name>Guam Government Waterworks Authority</name>
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        <name>Muscle Shoals Sheffield &amp; Tuscumbia Solid Waste Disposal Authority</name>
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        <name>Cullman Utilities Board Water Division</name>
        <lei>N/A</lei>
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        <name>Tuscaloosa City Board of Education</name>
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      <invstOrSec>
        <name>Orangeburg County Facilities Corp.</name>
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          <isin value="US685357AV75"/>
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          <annualizedRt>4.00000000</annualizedRt>
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        <name>Montgomery County Housing Opportunites Commission</name>
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        <name>Indiana Finance Authority</name>
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        <name>Puerto Rico Sales Tax Financing Corp.</name>
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        <isRestrictedSec>N</isRestrictedSec>

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        <name>Virginia Small Business Financing Authority</name>
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        <name>Puerto Rico Electric Power Authority</name>
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        <name>Puerto Rico Electric Power Authority</name>
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          <isPaidKind>N</isPaidKind>
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      <invstOrSec>
        <name>Puerto Rico Electric Power Authority</name>
        <lei>5493003BRB67HF8ST418</lei>
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          <isin value="US74526QX805"/>
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        <curCd>USD</curCd>
        <valUSD>10462.50000000</valUSD>
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        <issuerCat>MUN</issuerCat>
        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2021-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.25000000</annualizedRt>
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      <invstOrSec>
        <name>County of Mobile AL</name>
        <lei>N/A</lei>
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        <curCd>USD</curCd>
        <valUSD>314630.00000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2039-02-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>Birmingham-Jefferson Civic Center Authority</name>
        <lei>N/A</lei>
        <title>Birmingham-Jefferson Civic Center Authority</title>
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          <isin value="US091156MQ98"/>
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        <curCd>USD</curCd>
        <valUSD>763447.50000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2043-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.00000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Guam Government Waterworks Authority</name>
        <lei>N/A</lei>
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          <isin value="US40065FCG72"/>
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        <balance>45000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>51259.50000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>GU</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2036-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Puerto Rico Electric Power Authority</name>
        <lei>5493003BRB67HF8ST418</lei>
        <title>Puerto Rico Electric Power Authority</title>
        <cusip>74526QT51</cusip>
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          <isin value="US74526QT514"/>
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        <balance>5000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>3487.50000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2030-07-01</maturityDt>
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          <annualizedRt>5.25000000</annualizedRt>
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      <invstOrSec>
        <name>Puerto Rico Electric Power Authority</name>
        <lei>5493003BRB67HF8ST418</lei>
        <title>Puerto Rico Electric Power Authority</title>
        <cusip>74526QR20</cusip>
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          <isin value="US74526QR203"/>
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        <curCd>USD</curCd>
        <valUSD>3475.00000000</valUSD>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2027-07-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>Alabama Public School and College Authority</name>
        <lei>N/A</lei>
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          <isin value="US0106086V45"/>
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        <valUSD>901152.00000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2025-06-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Chatom Industrial Development Board</name>
        <lei>N/A</lei>
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        <cusip>16229PAM7</cusip>
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          <isin value="US16229PAM77"/>
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        <balance>1000000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1003000.00000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2037-08-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Puerto Rico Sales Tax Financing Corp.</name>
        <lei>N/A</lei>
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          <isin value="US74529JPX71"/>
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        <balance>650000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>679607.50000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2058-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>County of Hamilton OH</name>
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        <curCd>USD</curCd>
        <valUSD>56703.15000000</valUSD>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2035-08-15</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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      <invstOrSec>
        <name>Dallas-Fort Worth International Airport</name>
        <lei>N/A</lei>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2045-11-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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        <name>New Jersey Transportation Trust Fund Authority</name>
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        <name>Commonwealth of Puerto Rico</name>
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        <invCountry>PR</invCountry>

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          <maturityDt>2020-07-01</maturityDt>
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        <name>Montebello Unified School District</name>
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          <maturityDt>2046-08-01</maturityDt>
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        <name>Puerto Rico Electric Power Authority</name>
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          <isin value="US74526QLW05"/>
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        <balance>70000.00000000</balance>
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        <invCountry>PR</invCountry>

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          <maturityDt>2027-07-01</maturityDt>
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          <annualizedRt>4.25000000</annualizedRt>
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        <name>Michigan Finance Authority</name>
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        <name>UAB Medicine Finance Authority</name>
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        <invCountry>US</invCountry>
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      <invstOrSec>
        <name>Puerto Rico Sales Tax Financing Corp.</name>
        <lei>N/A</lei>
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      <invstOrSec>
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          <maturityDt>2038-02-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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        <name>Montevallo American Village Public Educational Building Authority</name>
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        <name>Puerto Rico Electric Power Authority</name>
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          <maturityDt>2037-07-01</maturityDt>
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        <name>Puerto Rico Highway &amp; Transportation Authority</name>
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        <name>Toll Road Investors Partnership II LP</name>
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          <maturityDt>2043-02-15</maturityDt>
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        <name>Auburn University</name>
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        <name>Puerto Rico Sales Tax Financing Corp.</name>
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        <name>Buckeye Tobacco Settlement Financing Authority</name>
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        <name>University of West Alabama</name>
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        <name>Chattanooga Health Educational &amp; Housing Facility Board</name>
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        <name>Port Beaumont Navigation District</name>
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        <name>County of Jefferson AL Sewer Revenue</name>
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        <name>New York Liberty Development Corp.</name>
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      <invstOrSec>
        <name>Cullman City Board of Education</name>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2047-03-01</maturityDt>
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      <invstOrSec>
        <name>Commonwealth of Puerto Rico</name>
        <lei>549300X44HXPLJU48U63</lei>
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        <curCd>USD</curCd>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2030-07-01</maturityDt>
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      <invstOrSec>
        <name>Anniston Public Building Authority</name>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2032-03-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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        <name>Cherokee County Board of Education AL</name>
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        <curCd>USD</curCd>
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        <fairValLevel>2</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>N/A</name>
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          <other otherDesc="Inhouse Sedol" value="USU0COS"/>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Homewood Educational Building Authority</name>
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          <isin value="US437887FZ06"/>
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        <name>Warrior River Water Authority</name>
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        <fairValLevel>2</fairValLevel>
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        <name>New Jersey Health Care Facilities Financing Authority</name>
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          <maturityDt>2046-07-01</maturityDt>
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        <name>State of Illinois</name>
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          <maturityDt>2039-05-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.50000000</annualizedRt>
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        <name>Puerto Rico Electric Power Authority</name>
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        <invCountry>PR</invCountry>

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          <maturityDt>2022-07-01</maturityDt>
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        <name>Guam Government Waterworks Authority</name>
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        <name>Buckeye Tobacco Settlement Financing Authority</name>
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        <name>Gadsden Water Works &amp; Sewer Board</name>
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        <name>Puerto Rico Highway &amp; Transportation Authority</name>
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        <name>City of Chicago IL</name>
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        <name>Metropolitan Transportation Authority</name>
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      <invstOrSec>
        <name>Guam Government Waterworks Authority</name>
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        <name>Buckeye Tobacco Settlement Financing Authority</name>
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        <name>Central Plains Energy Project</name>
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        <name>Iowa Student Loan Liquidity Corp.</name>
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      <invstOrSec>
        <name>Puerto Rico Electric Power Authority</name>
        <lei>5493003BRB67HF8ST418</lei>
        <title>Puerto Rico Electric Power Authority</title>
        <cusip>74526QZJ4</cusip>
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          <isin value="US74526QZJ48"/>
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        <balance>50000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>50012.50000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <maturityDt>2024-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>3.65000000</annualizedRt>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Jacksonville Public Educational Building Authority</name>
        <lei>N/A</lei>
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        <cusip>469480AM9</cusip>
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          <isin value="US469480AM91"/>
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        <balance>600000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>685038.00000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2036-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Territory of Guam</name>
        <lei>N/A</lei>
        <title>Territory of Guam</title>
        <cusip>40065HDT4</cusip>
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          <isin value="US40065HDT41"/>
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        <balance>55000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>60477.45000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>GU</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2035-12-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Michigan Finance Authority</name>
        <lei>54930022O46HOX5J1D14</lei>
        <title>Michigan Finance Authority</title>
        <cusip>59447PA27</cusip>
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          <isin value="US59447PA274"/>
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        <balance>15000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>17245.20000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2032-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</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>Huntsville Public Building Authority</name>
        <lei>N/A</lei>
        <title>Huntsville Public Building Authority</title>
        <cusip>447154DZ5</cusip>
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          <isin value="US447154DZ52"/>
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        <balance>500000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>623400.00000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2033-10-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Puerto Rico Convention Center District Authority</name>
        <lei>N/A</lei>
        <title>Puerto Rico Convention Center District Authority</title>
        <cusip>745266BC9</cusip>
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          <isin value="US745266BC95"/>
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        <balance>70000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>70019.60000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2031-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Guam Power Authority</name>
        <lei>549300IPOV320QCKW060</lei>
        <title>Guam Power Authority</title>
        <cusip>400653FW6</cusip>
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          <isin value="US400653FW66"/>
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        <balance>230000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>232953.20000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>GU</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2040-10-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.50000000</annualizedRt>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Alabama Federal Aid Highway Finance Authority</name>
        <lei>N/A</lei>
        <title>Alabama Federal Aid Highway Finance Authority</title>
        <cusip>010268AZ3</cusip>
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          <isin value="US010268AZ39"/>
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        <balance>500000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>602925.00000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2035-09-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</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>Texas Private Activity Bond Surface Transportation Corp.</name>
        <lei>N/A</lei>
        <title>Texas Private Activity Bond Surface Transportation Corp.</title>
        <cusip>882667AD0</cusip>
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          <isin value="US882667AD00"/>
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        <balance>100000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>100550.00000000</valUSD>
        <pctVal>0.125446640787</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2040-06-30</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>7.00000000</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>Puerto Rico Sales Tax Financing Corp.</name>
        <lei>N/A</lei>
        <title>Puerto Rico Sales Tax Financing Corp. Sales Tax</title>
        <cusip>74529JQB4</cusip>
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          <isin value="US74529JQB43"/>
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        <balance>1000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>901.02000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2024-07-01</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Puerto Rico Electric Power Authority</name>
        <lei>5493003BRB67HF8ST418</lei>
        <title>Puerto Rico Electric Power Authority</title>
        <cusip>74526QJ45</cusip>
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          <isin value="US74526QJ457"/>
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        <balance>5000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>3475.00000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2020-07-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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        <name>Puerto Rico Highway &amp; Transportation Authority</name>
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          <isin value="US745190E792"/>
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        <curCd>USD</curCd>
        <valUSD>359792.40000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2029-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.50000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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        <name>Puerto Rico Electric Power Authority</name>
        <lei>5493003BRB67HF8ST418</lei>
        <title>Puerto Rico Electric Power Authority</title>
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          <isin value="US74526QK844"/>
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        <balance>70000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>48650.00000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2021-07-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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        <name>Birmingham Airport Authority</name>
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          <isin value="US090888GS18"/>
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        <curCd>USD</curCd>
        <valUSD>412236.50000000</valUSD>
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        <invCountry>US</invCountry>
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          <maturityDt>2033-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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        <name>City of Huntsville AL</name>
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          <isin value="US447025PW17"/>
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        <valUSD>1154910.00000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2030-11-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>5.00000000</annualizedRt>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Puerto Rico Electric Power Authority</name>
        <lei>5493003BRB67HF8ST418</lei>
        <title>Puerto Rico Electric Power Authority</title>
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          <isin value="US74526QZC94"/>
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        <balance>10000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>10004.30000000</valUSD>
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        <assetCat>DBT</assetCat>
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        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2023-07-01</maturityDt>
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          <annualizedRt>3.62500000</annualizedRt>
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      <invstOrSec>
        <name>Puerto Rico Sales Tax Financing Corp.</name>
        <lei>N/A</lei>
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          <isin value="US74529JPV16"/>
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        <balance>16000.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>16312.00000000</valUSD>
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        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>PR</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2040-07-01</maturityDt>
          <couponKind>Fixed</couponKind>
          <annualizedRt>4.55000000</annualizedRt>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Jefferson County Board of Education AL</name>
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        <balance>805000.00000000</balance>
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        <valUSD>893807.60000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>MUN</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
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        <name>New York Transportation Development Corp.</name>
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      <invstOrSec>
        <name>University of Alabama (The)</name>
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        <name>New Jersey Transportation Trust Fund Authority</name>
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          <maturityDt>2035-07-01</maturityDt>
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        <name>Puerto Rico Sales Tax Financing Corp.</name>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2029-07-01</maturityDt>
          <couponKind>None</couponKind>
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      <invstOrSec>
        <name>Troy University</name>
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          <maturityDt>2028-11-01</maturityDt>
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          <annualizedRt>5.00000000</annualizedRt>
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        <name>Port Beaumont Navigation District</name>
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        <name>Puerto Rico Electric Power Authority</name>
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        <name>Puerto Rico Infrastructure Financing Authority</name>
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        <name>UAB Medicine Finance Authority</name>
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        <name>Golden State Tobacco Securitization Corp.</name>
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        <name>Puerto Rico Sales Tax Financing Corp.</name>
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      <invstOrSec>
        <name>University of South Alabama</name>
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        <name>Tuscaloosa County Industrial Development Authority</name>
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      <invstOrSec>
        <name>Scottsboro Waterworks Sewer &amp; Gas Board</name>
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      <invstOrSec>
        <name>Alabama Community College System</name>
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        <name>Alabama Community College System</name>
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          <isin value="US01025PDZ36"/>
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      <invstOrSec>
        <name>New Jersey Building Authority</name>
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      <invstOrSec>
        <name>Birmingham-Jefferson Civic Center Authority</name>
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        <name>Michigan Finance Authority</name>
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        <name>Alabama Special Care Facilities Financing Authority-Birmingham AL</name>
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          <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="All applicable monthly total returns are reported excluding any sales loads or redemption fees for Item B.5." noteItem="B.5.a"/>
    </explntrNotes>
    <signature>
      <ncom:dateSigned>2020-07-30</ncom:dateSigned>
      <ncom:nameOfApplicant>MFS Municipal Series Trust</ncom:nameOfApplicant>
      <ncom:signature>Kasey Phillips</ncom:signature>
      <ncom:signerName>Kasey Phillips</ncom:signerName>
      <ncom:title>Assistant Treasurer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
