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3-7/8% 30-YEAR TREASURY INFLATION-PROTECTED SECURITIES (TIPS)

Ref CPI and Index Ratios for July 2005

Contact: Office of Financing       202-504-3550
DESCRIPTION:                            TIPS of April 2029
CUSIP NUMBER:                           912810FH6
DATED DATE:                             April 15, 1999
ORIGINAL ISSUE DATE:                    April 15, 1999
ADDITIONAL ISSUE DATE:                  October 15, 1999
                                        October 16, 2000
MATURITY DATE:                          April 15, 2029
Ref CPI on DATED DATE:                  164.39333
TABLE FOR MONTH OF:                     July 2005
NUMBER OF DAYS IN MONTH:                31

CPI-U (NSA) March 2005                  193.3
CPI-U (NSA) April 2005                  194.6
CPI-U (NSA) May 2005                    194.4

Month   Calendar Day    Year    Ref CPI       Index Ratio

July            1       2005    194.60000       1.18375
July            2       2005    194.59355       1.18371
July            3       2005    194.58710       1.18367
July            4       2005    194.58065       1.18363
July            5       2005    194.57419       1.18359
July            6       2005    194.56774       1.18355
July            7       2005    194.56129       1.18351
July            8       2005    194.55484       1.18347
July            9       2005    194.54839       1.18343
July            10      2005    194.54194       1.18339
July            11      2005    194.53548       1.18335
July            12      2005    194.52903       1.18331
July            13      2005    194.52258       1.18328
July            14      2005    194.51613       1.18324
July            15      2005    194.50968       1.18320
July            16      2005    194.50323       1.18316
July            17      2005    194.49677       1.18312
July            18      2005    194.49032       1.18308
July            19      2005    194.48387       1.18304
July            20      2005    194.47742       1.18300
July            21      2005    194.47097       1.18296
July            22      2005    194.46452       1.18292
July            23      2005    194.45806       1.18288
July            24      2005    194.45161       1.18284
July            25      2005    194.44516       1.18280
July            26      2005    194.43871       1.18277
July            27      2005    194.43226       1.18273
July            28      2005    194.42581       1.18269
July            29      2005    194.41935       1.18265
July            30      2005    194.41290       1.18261
July            31      2005    194.40645       1.18257