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3-3/8% 10-YEAR TREASURY INFLATION-PROTECTED SECURITIES (TIPS) Due January 15, 2007

Ref CPI and Index Ratios for September 2006

    Contact: Office of Financing       202-504-3550
    DESCRIPTION:                            Series A-2007
    CUSIP NUMBER:                           9128272M3
    DATED DATE:                             January 15, 1997
    ORIGINAL ISSUE DATE:                    February 6, 1997
    ADDITIONAL ISSUE DATE:                  April 15, 1997
    MATURITY DATE:                          January 15, 2007
    Ref CPI on DATED DATE:                  158.43548
    TABLE FOR MONTH OF:                     September 2006
    NUMBER OF DAYS IN MONTH:                30

    CPI-U (NSA) May 2006                    202.5
    CPI-U (NSA) June 2006                   202.9
    CPI-U (NSA) July 2006                   203.5

    Month     Calendar Day    Year     Ref CPI      Index Ratio

    September       1         2006    202.90000       1.28065
    September       2         2006    202.92000       1.28077
    September       3         2006    202.94000       1.28090
    September       4         2006    202.96000       1.28103
    September       5         2006    202.98000       1.28115
    September       6         2006    203.00000       1.28128
    September       7         2006    203.02000       1.28140
    September       8         2006    203.04000       1.28153
    September       9         2006    203.06000       1.28166
    September       10        2006    203.08000       1.28178
    September       11        2006    203.10000       1.28191
    September       12        2006    203.12000       1.28204
    September       13        2006    203.14000       1.28216
    September       14        2006    203.16000       1.28229
    September       15        2006    203.18000       1.28241
    September       16        2006    203.20000       1.28254
    September       17        2006    203.22000       1.28267
    September       18        2006    203.24000       1.28279
    September       19        2006    203.26000       1.28292
    September       20        2006    203.28000       1.28305
    September       21        2006    203.30000       1.28317
    September       22        2006    203.32000       1.28330
    September       23        2006    203.34000       1.28342
    September       24        2006    203.36000       1.28355
    September       25        2006    203.38000       1.28368
    September       26        2006    203.40000       1.28380
    September       27        2006    203.42000       1.28393
    September       28        2006    203.44000       1.28406
    September       29        2006    203.46000       1.28418
    September       30        2006    203.48000       1.28431