Report Account Number Security Number (Full) Coupon Rate Shares/Par Accrued Income Gross Request Date ------------------------- ------------------------------- ------------------- ------------------------ ---------------------- --------------- N/A SUB-COHORT 91X4253 9153 09/30/2034 01994 6.770001600 56,651,959.3000 1,917,669.28 03/31/2008 91X4253 9153 09/30/2035 01995 7.390000800 495,638,895.1700 18,313,859.16 03/31/2008 91X4253 9153 09/30/2036 01996 6.770001600 1,545,356,201.3500 52,310,319.78 03/31/2008 91X4253 9153 09/30/2037 01997 6.890000400 1,998,512,941.1800 68,848,774.82 03/31/2008 91X4253 9153 09/30/2038 01998 5.979999600 2,773,704,930.1300 82,933,771.86 03/31/2008 91X4253 9153 09/30/2039 01999 5.810000400 4,224,438,599.0500 122,719,949.75 03/31/2008 91X4253 9153 09/30/2040 02000 6.360001200 4,506,720,412.4200 143,313,736.16 03/31/2008 91X4253 9153 09/30/2041 02001 5.749999200 6,872,456,688.9000 197,583,102.32 03/31/2008 91X4253 9153 09/30/2042 02002 5.619999600 8,593,165,184.9200 241,467,924.51 03/31/2008 91X4253 9153 09/30/2043 02003 5.029999200 9,573,299,816.9800 240,768,452.10 03/31/2008 91X4253 9153 09/30/2044 02004 5.240001600 9,711,543,198.8300 254,442,509.50 03/31/2008 91X4253 9153 09/30/2045 02005 4.719999600 17,357,425,925.2500 409,635,217.12 03/31/2008 91X4253 9153 09/30/2046 02006 4.989999600 23,844,460,492.7600 594,919,241.61 03/31/2008 91X4253 9153 09/30/2047 02007 4.970001600 16,970,299,180.8400 421,712,070.41 03/31/2008 91X4253 9153 09/30/2048 02008 4.830001200 6,515,697,606.0000 157,354,136.28 03/31/2008 ------------------------ ---------------------- 115,039,372,033.0800 3,008,240,734.66 ======================== ====================== 115,039,372,033.0800 3,008,240,734.66 ============================================================================================================================ TRANSACTIONS ============================================================================================================================ Security Number (Full) Effective Date Tran Code Shares/Par Income Memo Number ------------------------------- --------------- ----------- ------------------------ ---------------------- ------------- ======================== ====================== 0.0000 0.00