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4-1/4% 10-YEAR TREASURY INFLATION-PROTECTED SECURITIES (TIPS)

Ref CPI and Index Ratios for June 2005

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:                     June 2005
NUMBER OF DAYS IN MONTH:                30

CPI-U (NSA) February 2005               191.8
CPI-U (NSA) March 2005                  193.3
CPI-U (NSA) April 2005                  194.6

Month   Calendar Day    Year    Ref CPI       Index Ratio

June            1       2005    193.30000       1.14892
June            2       2005    193.34333       1.14918
June            3       2005    193.38667       1.14943
June            4       2005    193.43000       1.14969
June            5       2005    193.47333       1.14995
June            6       2005    193.51667       1.15021
June            7       2005    193.56000       1.15046
June            8       2005    193.60333       1.15072
June            9       2005    193.64667       1.15098
June            10      2005    193.69000       1.15124
June            11      2005    193.73333       1.15149
June            12      2005    193.77667       1.15175
June            13      2005    193.82000       1.15201
June            14      2005    193.86333       1.15227
June            15      2005    193.90667       1.15252
June            16      2005    193.95000       1.15278
June            17      2005    193.99333       1.15304
June            18      2005    194.03667       1.15330
June            19      2005    194.08000       1.15355
June            20      2005    194.12333       1.15381
June            21      2005    194.16667       1.15407
June            22      2005    194.21000       1.15433
June            23      2005    194.25333       1.15458
June            24      2005    194.29667       1.15484
June            25      2005    194.34000       1.15510
June            26      2005    194.38333       1.15536
June            27      2005    194.42667       1.15562
June            28      2005    194.47000       1.15587
June            29      2005    194.51333       1.15613
June            30      2005    194.55667       1.15639