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3-1/2% 10-YEAR TREASURY INFLATION-PROTECTED SECURITIES (TIPS)

Ref CPI and Index Ratios for October 2005

Contact: Office of Financing      202-504-3550
DESCRIPTION:                            Series A-2011
CUSIP NUMBER:                           9128276R8
DATED DATE:                             January 15, 2001
ORIGINAL ISSUE DATE:                    January 16, 2001
ADDITIONAL ISSUE DATE:                  July 16, 2001
MATURITY DATE:                          January 15, 2011
Ref CPI on DATED DATE:                  174.04516
TABLE FOR MONTH OF:                     October 2005
NUMBER OF DAYS IN MONTH:                31

CPI-U (NSA) June 2005                   194.5
CPI-U (NSA) July 2005                   195.4
CPI-U (NSA) August 2005                 196.4

Month   Calendar Day    Year    Ref CPI Index Ratio

October        1       2005    195.40000       1.12270
October        2       2005    195.43226       1.12288
October        3       2005    195.46452       1.12307
October        4       2005    195.49677       1.12325
October        5       2005    195.52903       1.12344
October        6       2005    195.56129       1.12362
October        7       2005    195.59355       1.12381
October        8       2005    195.62581       1.12399
October        9       2005    195.65806       1.12418
October        10      2005    195.69032       1.12437
October        11      2005    195.72258       1.12455
October        12      2005    195.75484       1.12474
October        13      2005    195.78710       1.12492
October        14      2005    195.81935       1.12511
October        15      2005    195.85161       1.12529
October        16      2005    195.88387       1.12548
October        17      2005    195.91613       1.12566
October        18      2005    195.94839       1.12585
October        19      2005    195.98065       1.12603
October        20      2005    196.01290       1.12622
October        21      2005    196.04516       1.12640
October        22      2005    196.07742       1.12659
October        23      2005    196.10968       1.12677
October        24      2005    196.14194       1.12696
October        25      2005    196.17419       1.12715
October        26      2005    196.20645       1.12733
October        27      2005    196.23871       1.12752
October        28      2005    196.27097       1.12770
October        29      2005    196.30323       1.12789
October        30      2005    196.33548       1.12807
October        31      2005    196.36774       1.12826