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4-1/4% TREASURY 10-YEAR INFLATION-INDEXED NOTES

Ref CPI and Index Ratios for May 2001

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:                     May 2001
NUMBER OF DAYS IN MONTH:                31

CPI-U (NSA) January 2001                175.1
CPI-U (NSA) February 2001               175.8
CPI-U (NSA) March 2001                  176.2

Month   Calendar Day    Year    Ref CPI      Index Ratio

May             1       2001    175.80000       1.04490
May             2       2001    175.81290       1.04498
May             3       2001    175.82581       1.04506
May             4       2001    175.83871       1.04513
May             5       2001    175.85161       1.04521
May             6       2001    175.86452       1.04529
May             7       2001    175.87742       1.04536
May             8       2001    175.89032       1.04544
May             9       2001    175.90323       1.04552
May             10      2001    175.91613       1.04559
May             11      2001    175.92903       1.04567
May             12      2001    175.94194       1.04575
May             13      2001    175.95484       1.04582
May             14      2001    175.96774       1.04590
May             15      2001    175.98065       1.04598
May             16      2001    175.99355       1.04605
May             17      2001    176.00645       1.04613
May             18      2001    176.01935       1.04621
May             19      2001    176.03226       1.04628
May             20      2001    176.04516       1.04636
May             21      2001    176.05806       1.04644
May             22      2001    176.07097       1.04651
May             23      2001    176.08387       1.04659
May             24      2001    176.09677       1.04667
May             25      2001    176.10968       1.04674
May             26      2001    176.12258       1.04682
May             27      2001    176.13548       1.04690
May             28      2001    176.14839       1.04697
May             29      2001    176.16129       1.04705
May             30      2001    176.17419       1.04713
May             31      2001    176.18710       1.04720