N-MFP LIVE N 2011-05-31 0000746458 S000006473 1 N N 002-91229 AMERICAN CENTURY INVESTMENT MANAGEMENT, INC. 801-08174 PricewaterhouseCoopers, LLP KANSAS CITY MO AMERICAN CENTURY SERVICES, LLC American Century Services, LLC 0000794265 084-01406 N N N Other Tax Exempt Fund 10 12 235003488.92 2898384.35 513084.08 237388789.19 0.0043 0.9999 2011-05-31 0.9999 2011-05-31 C000017692 2500.00 237388789.19 1.00 368196.70 7283839.55 6915642.85 0.0001 0.9999 2011-05-31 0.9999 2011-05-31 Alameda County Industrial Development Auth. Alameda County Industrial Development Auth. 0.33 011107AE9 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF THE WEST N/A N/A Y BANK OF THE WEST N/A N/A N 4100000.00 4100000.00 0.0173 N 4100000.00 4100000.00 Allen County Health Care Facilities Allen County Health Care Facilities 0.28 01757RAA1 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 940000.00 940000.00 0.0040 N 940000.00 940000.00 Austin Trust Austin Trust 0.34 05248P7H2 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 1084000.00 1084000.00 0.0046 N 1084000.00 1084000.00 Avon Industrial Development Avon Industrial Development 0.25 054027AC1 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 2745000.00 2745000.00 0.0116 N 2745000.00 2745000.00 Baltimore Industrial Development Auth. Baltimore Industrial Development Auth. 0.20 05922DAA3 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BAYERISCHE LANDESBANK N/A N/A Y BAYERISCHE LANDESBANK N/A N/A N 7395000.00 7395000.00 0.0312 N 7395000.00 7395000.00 Berks County Municipal Auth. Berks County Municipal Auth. 0.38 084538GR2 Other Municipal Debt First Tier Security 2011-06-02 2011-07-14 N N N 11285000.00 11285000.00 0.0475 N 11285000.00 11285000.00 Bradley County Industrial Development Board Bradley County Industrial Development Board 0.25 104565CP9 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF NOVA SCOTIA N/A N/A Y BANK OF NOVA SCOTIA N/A N/A N 7880000.00 7880000.00 0.0332 N 7880000.00 7880000.00 Brazos Harbor Industrial Development Corp. Brazos Harbor Industrial Development Corp. 0.32 10623QAA6 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 N N N 11500000.00 11500000.00 0.0484 N 11500000.00 11500000.00 Buncombe County Buncombe County 0.28 120511UZ1 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1050000.00 1050000.00 0.0044 N 1050000.00 1050000.00 California School Cash Reserve Program Auth. California School Cash Reserve Program Auth. 2 130583CR6 Other Municipal Debt First Tier Security 2011-06-01 2011-06-01 N N N 1800000.00 1800000.00 0.0076 N 1800090.00 1800090.00 California Statewide Communities Development Auth. California Statewide Communities Development Auth. 0.38 130911LY4 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM N/A N/A Y CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM N/A N/A N 620000.00 620000.00 0.0026 N 620000.00 620000.00 Clayton County Multi-Family Housing Auth. Clayton County Multi-Family Housing Auth. 0.94 184160FH7 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y SOCIETE GENERALE N/A N/A Y SOCIETE GENERALE N/A N/A ASSURED GUARANTY MUNICIPAL CORP N/A N/A N 6955000.00 6955000.00 0.0293 N 6955000.00 6955000.00 Clayton County Multi-Family Housing Auth. Clayton County Multi-Family Housing Auth. 0.94 184160FF1 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y SOCIETE GENERALE N/A N/A Y SOCIETE GENERALE N/A N/A ASSURED GUARANTY MUNICIPAL CORP N/A N/A N 3315000.00 3315000.00 0.0140 N 3315000.00 3315000.00 Clayton County Multi-Family Housing Auth. Clayton County Multi-Family Housing Auth. 0.94 184160FE4 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y SOCIETE GENERALE N/A N/A Y SOCIETE GENERALE N/A N/A ASSURED GUARANTY MUNICIPAL CORP N/A N/A N 6155000.00 6155000.00 0.0259 N 6155000.00 6155000.00 Crawford Education Facilities Corp. Crawford Education Facilities Corp. 0.4 225095AA6 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BNP PARIBAS N/A N/A Y BNP PARIBAS N/A N/A N 9500000.00 9500000.00 0.0400 N 9500000.00 9500000.00 Delaware Health Facilities Auth. Delaware Health Facilities Auth. 0.26 246388KD3 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y PNC BANK NA N/A N/A Y PNC BANK NA N/A N/A N 16805000.00 16805000.00 0.0708 N 16805000.00 16805000.00 DeSoto County Industrial Development DeSoto County Industrial Development 0.29 241521AM5 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BRANCH BANKING & TRUST CO. N/A N/A Y BRANCH BANKING & TRUST CO. N/A N/A N 2000000.00 2000000.00 0.0084 N 2000000.00 2000000.00 Dover-Foxcroft Maine Dover-Foxcroft Maine 0.33 260109AA1 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1160000.00 1160000.00 0.0049 N 1160000.00 1160000.00 Escambia County Solid Waste Disposal System Escambia County Solid Waste Disposal System 0.19 296163BB3 Variable Rate Demand Note First Tier Security 2011-06-01 2011-06-01 N N N 4800000.00 4800000.00 0.0202 N 4800000.00 4800000.00 Guymon Utilities Auth. Guymon Utilities Auth. 0.3 403613AA0 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF THE WEST N/A N/A Y BANK OF THE WEST N/A N/A N 3300000.00 3300000.00 0.0139 N 3300000.00 3300000.00 Hale County Industrial Development Corp. Hale County Industrial Development Corp. 0.33 405475AA2 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF THE WEST N/A N/A Y BANK OF THE WEST N/A N/A N 3000000.00 3000000.00 0.0126 N 3000000.00 3000000.00 Hawaii State Department of Budget & Finance Hawaii State Department of Budget & Finance 0.35 419798NJ8 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1000000.00 1000000.00 0.0042 N 1000000.00 1000000.00 Illinois Development Finance Auth. Illinois Development Finance Auth. 0.4 45188RUD9 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 4000000.00 4000000.00 0.0168 N 4000000.00 4000000.00 Illinois Finance Auth. Illinois Finance Auth. 0.33 45200BH43 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 4000000.00 4000000.00 0.0168 N 4000000.00 4000000.00 Illinois Finance Auth. Illinois Finance Auth. 0.4 45200BFE3 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 1900000.00 1900000.00 0.0080 N 1900000.00 1900000.00 Illinois Housing Development Auth. Illinois Housing Development Auth. 0.59 45203LAG8 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y FEDERAL HOME LOAN BANKS N/A N/A Y FEDERAL HOME LOAN BANKS N/A N/A N 1910000.00 1910000.00 0.0080 N 1910000.00 1910000.00 Indiana Finance Auth. Industrial Development Indiana Finance Auth. Industrial Development 0.48 454907CF1 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 2135000.00 2135000.00 0.0090 N 2135000.00 2135000.00 Indiana Health Facility Financing Auth. Indiana Health Facility Financing Auth. 0.36 454798PG8 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y JPMORGAN CHASE BANK N/A N/A Y JPMORGAN CHASE BANK N/A N/A N 400000.00 400000.00 0.0017 N 400000.00 400000.00 Iowa Finance Auth. Economic Development Iowa Finance Auth. Economic Development 0.25 46246MDZ8 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 N N N 4000000.00 4000000.00 0.0168 N 4000000.00 4000000.00 Iowa Finance Auth. Industrial Development Iowa Finance Auth. Industrial Development 0.35 46246HFV6 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1000000.00 1000000.00 0.0042 N 1000000.00 1000000.00 Iowa Higher Education Loan Auth. Iowa Higher Education Loan Auth. 0.13 462460SL1 Variable Rate Demand Note First Tier Security 2011-06-01 2011-06-01 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 1150000.00 1150000.00 0.0048 N 1150000.00 1150000.00 Iredell County Industrial Facilities & Pollution Control Financing Auth. Iredell County Industrial Facilities & Pollution Control Financing Auth. 0.35 462673AH7 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1100000.00 1100000.00 0.0046 N 1100000.00 1100000.00 Jasper County Industrial Development Jasper County Industrial Development 0.33 471371AB0 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF THE WEST N/A N/A Y BANK OF THE WEST N/A N/A N 2800000.00 2800000.00 0.0118 N 2800000.00 2800000.00 JP Morgan Chase Trust JP Morgan Chase Trust 0.28 46632P2E2 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y JPMORGAN CHASE BANK N/A N/A Y JPMORGAN CHASE BANK N/A N/A ASSURED GUARANTY MUNICIPAL CORP N/A N/A N 3695000.00 3695000.00 0.0156 N 3695000.00 3695000.00 Los Angeles Unified School District Los Angeles Unified School District 2 544646C59 Other Municipal Debt First Tier Security 2011-06-30 2011-06-30 N N N 3000000.00 3003147.77 0.0127 N 3003900.00 3003900.00 Louisiana Local Government Environmental Facilities & Community Development Auth. Louisiana Local Government Environmental Facilities & Community Development Auth. 0.28 546279YW4 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1760000.00 1760000.00 0.0074 N 1760000.00 1760000.00 Macon Trust Macon Trust 0.35 555866BJ0 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 5618000.00 5618000.00 0.0237 N 5618000.00 5618000.00 Maryland Economic Development Corp. Maryland Economic Development Corp. 0.28 57420NAQ4 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 1215000.00 1215000.00 0.0051 N 1215000.00 1215000.00 Massachusetts Industrial Finance Agency. Massachusetts Industrial Finance Agency. 0.41 575855T35 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF NEW YORK MELLON N/A N/A Y BANK OF NEW YORK MELLON N/A N/A N 1415000.00 1415000.00 0.0060 N 1415000.00 1415000.00 McCook Illinois McCook Illinois 0.2 579703AJ8 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y NORTHERN TRUST COMPANY N/A N/A Y NORTHERN TRUST COMPANY N/A N/A N 1700000.00 1700000.00 0.0072 N 1700000.00 1700000.00 McCook Illinois McCook Illinois 0.2 579703AH2 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y NORTHERN TRUST COMPANY N/A N/A Y NORTHERN TRUST COMPANY N/A N/A N 600000.00 600000.00 0.0025 N 600000.00 600000.00 Milwaukee Redevelopment Auth. Milwaukee Redevelopment Auth. 0.42 60242EFM8 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 2175000.00 2175000.00 0.0092 N 2175000.00 2175000.00 Mississippi Business Finance Corp. Mississippi Business Finance Corp. 0.3 605279EZ7 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1715000.00 1715000.00 0.0072 N 1715000.00 1715000.00 Muleshoe Economic Development Corp. Industrial Development Muleshoe Economic Development Corp. Industrial Development 0.28 625196AA8 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 4755000.00 4755000.00 0.0200 N 4755000.00 4755000.00 New York City Capital Resources Corp. New York City Capital Resources Corp. 0.27 649437AG5 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 2500000.00 2500000.00 0.0105 N 2500000.00 2500000.00 New York City Industrial Development Agency New York City Industrial Development Agency 0.66 64971CSU9 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y JPMORGAN CHASE BANK N/A N/A Y JPMORGAN CHASE BANK N/A N/A N 595000.00 595000.00 0.0025 N 595000.00 595000.00 North Carolina Capital Facilities Finance Agency North Carolina Capital Facilities Finance Agency 0.29 65819GCD8 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 1175000.00 1175000.00 0.0049 N 1175000.00 1175000.00 North Carolina Housing Finance Agency North Carolina Housing Finance Agency 0.26 65820EK90 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 710000.00 710000.00 0.0030 N 710000.00 710000.00 North Carolina Medical Care Commission North Carolina Medical Care Commission 0.28 657902RQ7 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 905000.00 905000.00 0.0038 N 905000.00 905000.00 North Carolina Medical Care Commission Health Care Facilities North Carolina Medical Care Commission Health Care Facilities 0.28 657902US9 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1400000.00 1400000.00 0.0059 N 1400000.00 1400000.00 Riverside County Riverside County 2 76914AAB8 Other Municipal Debt First Tier Security 2011-10-12 2011-10-12 N N N 2680000.00 2692598.14 0.0113 N 2693721.60 2693721.60 Rock Island County Metropolitan Airport Auth. Rock Island County Metropolitan Airport Auth. 0.37 772340AL9 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 2155000.00 2155000.00 0.0091 N 2155000.00 2155000.00 Santa Rosa Wastewater Santa Rosa Wastewater 0.33 802649MB6 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y LANDESBANK BADEN-WUERTTEMBERG N/A N/A Y LANDESBANK BADEN-WUERTTEMBERG N/A N/A N 16900000.00 16900000.00 0.0712 N 16900000.00 16900000.00 Savannah Economic Development Auth. Savannah Economic Development Auth. 0.22 80483CBU4 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 1460000.00 1460000.00 0.0062 N 1460000.00 1460000.00 Shawnee Private Activity Shawnee Private Activity 0.35 820692AB7 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1310000.00 1310000.00 0.0055 N 1310000.00 1310000.00 St. Louis County Industrial Development Educational Facilities Auth. St. Louis County Industrial Development Educational Facilities Auth. 0.28 79130TAZ6 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y FEDERAL HOME LOAN BANKS N/A N/A Y FEDERAL HOME LOAN BANKS N/A N/A N 5650000.00 5650000.00 0.0238 N 5650000.00 5650000.00 Stephens County Development Auth. Stephens County Development Auth. 0.53 858748AA4 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 N N N 1520000.00 1520000.00 0.0064 N 1520000.00 1520000.00 Terrebonne Economic Development Auth. Terrebonne Economic Development Auth. 0.44 881181AA9 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y FEDERAL HOME LOAN BANKS N/A N/A Y FEDERAL HOME LOAN BANKS N/A N/A N 3680000.00 3680000.00 0.0155 N 3680000.00 3680000.00 Texas Texas 2 882722VC2 Other Municipal Debt First Tier Security 2011-08-31 2011-08-31 N N N 5000000.00 5020743.01 0.0211 N 5022600.00 5022600.00 Thornton Industrial Development Thornton Industrial Development 0.25 885280AE7 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 2900000.00 2900000.00 0.0122 N 2900000.00 2900000.00 Troy Health Care Auth. Troy Health Care Auth. 0.28 897308AA0 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y FEDERAL HOME LOAN BANKS N/A N/A Y FEDERAL HOME LOAN BANKS N/A N/A N 2075000.00 2075000.00 0.0087 N 2075000.00 2075000.00 University Toledo General University Toledo General 0.15 915138HV6 Variable Rate Demand Note First Tier Security 2011-06-01 2011-06-01 N N N 1600000.00 1600000.00 0.0067 N 1600000.00 1600000.00 Victorville Joint Powers Financing Auth. Victorville Joint Powers Financing Auth. 1.5 92643UAC7 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BNP PARIBAS N/A N/A Y BNP PARIBAS N/A N/A N 11840000.00 11840000.00 0.0499 N 11840000.00 11840000.00 Washington Economic Development Finance Auth. Washington Economic Development Finance Auth. 0.28 939758CQ9 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 3780000.00 3780000.00 0.0159 N 3780000.00 3780000.00 Washington Finance Commission Nonprofit Housing Washington Finance Commission Nonprofit Housing 0.49 939783HP4 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 1750000.00 1750000.00 0.0074 N 1750000.00 1750000.00 Winchester Industrial Building Winchester Industrial Building 0.25 972856EA2 Variable Rate Demand Note First Tier Security 2011-06-07 2011-06-07 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 1000000.00 1000000.00 0.0042 N 1000000.00 1000000.00 Wisconsin Health & Educational Facilities Auth. Wisconsin Health & Educational Facilities Auth. 0.13 97710VK72 Variable Rate Demand Note First Tier Security 2011-06-01 2011-06-01 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 1450000.00 1450000.00 0.0061 N 1450000.00 1450000.00 Wisconsin Health & Educational Facilities Auth. Wisconsin Health & Educational Facilities Auth. 0.13 97710BDH2 Variable Rate Demand Note First Tier Security 2011-06-01 2011-06-01 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 500000.00 500000.00 0.0021 N 500000.00 500000.00