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

Ref CPI and Index Ratios for September 2008

    Contact: Office of Financing            202-504-3550
    DESCRIPTION:                            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:                     September 2008
    NUMBER OF DAYS IN MONTH:                30

    CPI-U (NSA) May 2008                    216.632
    CPI-U (NSA) June 2008                   218.815
    CPI-U (NSA) July 2008                   219.964

    Month   Calendar Day   Year    Ref CPI      Index Ratio

    September      1       2008    218.81500       1.30057
    September      2       2008    218.85330       1.30080
    September      3       2008    218.89160       1.30103
    September      4       2008    218.92990       1.30126
    September      5       2008    218.96820       1.30148
    September      6       2008    219.00650       1.30171
    September      7       2008    219.04480       1.30194
    September      8       2008    219.08310       1.30217
    September      9       2008    219.12140       1.30239
    September      10      2008    219.15970       1.30262
    September      11      2008    219.19800       1.30285
    September      12      2008    219.23630       1.30308
    September      13      2008    219.27460       1.30330
    September      14      2008    219.31290       1.30353
    September      15      2008    219.35120       1.30376
    September      16      2008    219.38950       1.30399
    September      17      2008    219.42780       1.30421
    September      18      2008    219.46610       1.30444
    September      19      2008    219.50440       1.30467
    September      20      2008    219.54270       1.30490
    September      21      2008    219.58100       1.30513
    September      22      2008    219.61930       1.30535
    September      23      2008    219.65760       1.30558
    September      24      2008    219.69590       1.30581
    September      25      2008    219.73420       1.30604
    September      26      2008    219.77250       1.30626
    September      27      2008    219.81080       1.30649
    September      28      2008    219.84910       1.30672
    September      29      2008    219.88740       1.30695
    September      30      2008    219.92570       1.30717