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

Ref CPI and Index Ratios for September 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:                     September 2005
NUMBER OF DAYS IN MONTH:                30

CPI-U (NSA) May 2005                    194.4
CPI-U (NSA) June 2005                   194.5
CPI-U (NSA) July 2005                   195.4

Month   Calendar Day    Year    Ref CPI      Index Ratio

September      1       2005    194.50000       1.18314
September      2       2005    194.53000       1.18332
September      3       2005    194.56000       1.18350
September      4       2005    194.59000       1.18369
September      5       2005    194.62000       1.18387
September      6       2005    194.65000       1.18405
September      7       2005    194.68000       1.18423
September      8       2005    194.71000       1.18442
September      9       2005    194.74000       1.18460
September      10      2005    194.77000       1.18478
September      11      2005    194.80000       1.18496
September      12      2005    194.83000       1.18515
September      13      2005    194.86000       1.18533
September      14      2005    194.89000       1.18551
September      15      2005    194.92000       1.18569
September      16      2005    194.95000       1.18588
September      17      2005    194.98000       1.18606
September      18      2005    195.01000       1.18624
September      19      2005    195.04000       1.18642
September      20      2005    195.07000       1.18661
September      21      2005    195.10000       1.18679
September      22      2005    195.13000       1.18697
September      23      2005    195.16000       1.18715
September      24      2005    195.19000       1.18734
September      25      2005    195.22000       1.18752
September      26      2005    195.25000       1.18770
September      27      2005    195.28000       1.18788
September      28      2005    195.31000       1.18807
September      29      2005    195.34000       1.18825
September      30      2005    195.37000       1.18843