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

Ref CPI and Index Ratios for May 2005

Contact: Office of Financing       202-504-3550
DESCRIPTION:                            Series A-2014
CUSIP NUMBER:                           912828BW9
DATED DATE:                             January 15, 2004
ORIGINAL ISSUE DATE:                    January 15, 2004
ADDITIONAL ISSUE DATE:                  April 15, 2004
MATURITY DATE:                          January 15, 2014
Ref CPI on DATED DATE:                  184.77419
TABLE FOR MONTH OF:                     May 2005
NUMBER OF DAYS IN MONTH:                31

CPI-U (NSA) January 2005                190.7
CPI-U (NSA) February 2005               191.8
CPI-U (NSA) March 2005                  193.3

Month   Calendar Day    Year    Ref CPI       Index Ratio

May             1       2005    191.80000       1.03802
May             2       2005    191.84839       1.03829
May             3       2005    191.89677       1.03855
May             4       2005    191.94516       1.03881
May             5       2005    191.99355       1.03907
May             6       2005    192.04194       1.03933
May             7       2005    192.09032       1.03959
May             8       2005    192.13871       1.03986
May             9       2005    192.18710       1.04012
May             10      2005    192.23548       1.04038
May             11      2005    192.28387       1.04064
May             12      2005    192.33226       1.04090
May             13      2005    192.38065       1.04117
May             14      2005    192.42903       1.04143
May             15      2005    192.47742       1.04169
May             16      2005    192.52581       1.04195
May             17      2005    192.57419       1.04221
May             18      2005    192.62258       1.04248
May             19      2005    192.67097       1.04274
May             20      2005    192.71935       1.04300
May             21      2005    192.76774       1.04326
May             22      2005    192.81613       1.04352
May             23      2005    192.86452       1.04378
May             24      2005    192.91290       1.04405
May             25      2005    192.96129       1.04431
May             26      2005    193.00968       1.04457
May             27      2005    193.05806       1.04483
May             28      2005    193.10645       1.04509
May             29      2005    193.15484       1.04536
May             30      2005    193.20323       1.04562
May             31      2005    193.25161       1.04588