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

Ref CPI and Index Ratios for June 2005

Contact: Office of Financing       202-504-3550
DESCRIPTION:                            Series C-2012
CUSIP NUMBER:                           912828AF7
DATED DATE:                             July 15, 2002
ORIGINAL ISSUE DATE:                    July 15, 2002
ADDITIONAL ISSUE DATE:                  October 15, 2002
                                        January 15, 2003
MATURITY DATE:                          July 15, 2012
Ref CPI on DATED DATE:                  179.80000
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       1.07508
June            2       2005    193.34333       1.07532
June            3       2005    193.38667       1.07557
June            4       2005    193.43000       1.07581
June            5       2005    193.47333       1.07605
June            6       2005    193.51667       1.07629
June            7       2005    193.56000       1.07653
June            8       2005    193.60333       1.07677
June            9       2005    193.64667       1.07701
June            10      2005    193.69000       1.07725
June            11      2005    193.73333       1.07749
June            12      2005    193.77667       1.07773
June            13      2005    193.82000       1.07798
June            14      2005    193.86333       1.07822
June            15      2005    193.90667       1.07846
June            16      2005    193.95000       1.07870
June            17      2005    193.99333       1.07894
June            18      2005    194.03667       1.07918
June            19      2005    194.08000       1.07942
June            20      2005    194.12333       1.07966
June            21      2005    194.16667       1.07990
June            22      2005    194.21000       1.08014
June            23      2005    194.25333       1.08039
June            24      2005    194.29667       1.08063
June            25      2005    194.34000       1.08087
June            26      2005    194.38333       1.08111
June            27      2005    194.42667       1.08135
June            28      2005    194.47000       1.08159
June            29      2005    194.51333       1.08183
June            30      2005    194.55667       1.08207