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4-1/4% 10-YEAR TREASURY INFLATION-PROTECTED SECURITIES (TIPS) Due January 15, 2010

Ref CPI and Index Ratios for October 2006

    Contact: Office of Financing             202-504-3550
     DESCRIPTION:                            Series A-2010
     CUSIP NUMBER:                           9128275W8
     DATED DATE:                             January 15, 2000
     ORIGINAL ISSUE DATE:                    January 18, 2000
     ADDITIONAL ISSUE DATE:                  July 17, 2000
     MATURITY DATE:                          January 15, 2010
     Ref CPI on DATED DATE:                  168.24516
     TABLE FOR MONTH OF:                     October 2006
     NUMBER OF DAYS IN MONTH:                31

     CPI-U (NSA) June 2006                   202.9
     CPI-U (NSA) July 2006                   203.5
     CPI-U (NSA) August 2006                 203.9

     Month   Calendar Day    Year    Ref CPI      Index Ratio

     October        1       2006    203.50000       1.20954
     October        2       2006    203.51290       1.20962
     October        3       2006    203.52581       1.20970
     October        4       2006    203.53871       1.20977
     October        5       2006    203.55161       1.20985
     October        6       2006    203.56452       1.20993
     October        7       2006    203.57742       1.21000
     October        8       2006    203.59032       1.21008
     October        9       2006    203.60323       1.21016
     October        10      2006    203.61613       1.21023
     October        11      2006    203.62903       1.21031
     October        12      2006    203.64194       1.21039
     October        13      2006    203.65484       1.21046
     October        14      2006    203.66774       1.21054
     October        15      2006    203.68065       1.21062
     October        16      2006    203.69355       1.21069
     October        17      2006    203.70645       1.21077
     October        18      2006    203.71935       1.21085
     October        19      2006    203.73226       1.21092
     October        20      2006    203.74516       1.21100
     October        21      2006    203.75806       1.21108
     October        22      2006    203.77097       1.21116
     October        23      2006    203.78387       1.21123
     October        24      2006    203.79677       1.21131
     October        25      2006    203.80968       1.21139
     October        26      2006    203.82258       1.21146
     October        27      2006    203.83548       1.21154
     October        28      2006    203.84839       1.21162
     October        29      2006    203.86129       1.21169
     October        30      2006    203.87419       1.21177
     October        31      2006    203.88710       1.21185