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3-5/8% TREASURY 10-YEAR INFLATION-INDEXED NOTES

Ref CPI and Index Ratios for May 2001

Contact: Office of Financing      202-504-3550

DESCRIPTION:                            Series A-2008
CUSIP NUMBER:                           9128273T7
DATED DATE:                             January 15, 1998
ORIGINAL ISSUE DATE:                    January 15, 1998
ADDITIONAL ISSUE DATE:                  October 15, 1998
MATURITY DATE:                          January 15, 2008
Ref CPI on DATED DATE:                  161.55484
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       1.08818
May             2       2001    175.81290       1.08826
May             3       2001    175.82581       1.08834
May             4       2001    175.83871       1.08841
May             5       2001    175.85161       1.08849
May             6       2001    175.86452       1.08857
May             7       2001    175.87742       1.08865
May             8       2001    175.89032       1.08873
May             9       2001    175.90323       1.08881
May             10      2001    175.91613       1.08889
May             11      2001    175.92903       1.08897
May             12      2001    175.94194       1.08905
May             13      2001    175.95484       1.08913
May             14      2001    175.96774       1.08921
May             15      2001    175.98065       1.08929
May             16      2001    175.99355       1.08937
May             17      2001    176.00645       1.08945
May             18      2001    176.01935       1.08953
May             19      2001    176.03226       1.08961
May             20      2001    176.04516       1.08969
May             21      2001    176.05806       1.08977
May             22      2001    176.07097       1.08985
May             23      2001    176.08387       1.08993
May             24      2001    176.09677       1.09001
May             25      2001    176.10968       1.09009
May             26      2001    176.12258       1.09017
May             27      2001    176.13548       1.09025
May             28      2001    176.14839       1.09033
May             29      2001    176.16129       1.09041
May             30      2001    176.17419       1.09049
May             31      2001    176.18710       1.09057