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

Ref CPI and Index Ratios for March 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:                     March 2005
NUMBER OF DAYS IN MONTH:                31

CPI-U (NSA) November 2004               191.0
CPI-U (NSA) December 2004               190.3
CPI-U (NSA) January 2005                190.7

Month   Calendar Day    Year    Ref CPI       Index Ratio

March           1       2005    190.30000       1.15759
March           2       2005    190.31290       1.15767
March           3       2005    190.32581       1.15775
March           4       2005    190.33871       1.15783
March           5       2005    190.35161       1.15790
March           6       2005    190.36452       1.15798
March           7       2005    190.37742       1.15806
March           8       2005    190.39032       1.15814
March           9       2005    190.40323       1.15822
March           10      2005    190.41613       1.15830
March           11      2005    190.42903       1.15837
March           12      2005    190.44194       1.15845
March           13      2005    190.45484       1.15853
March           14      2005    190.46774       1.15861
March           15      2005    190.48065       1.15869
March           16      2005    190.49355       1.15877
March           17      2005    190.50645       1.15885
March           18      2005    190.51935       1.15892
March           19      2005    190.53226       1.15900
March           20      2005    190.54516       1.15908
March           21      2005    190.55806       1.15916
March           22      2005    190.57097       1.15924
March           23      2005    190.58387       1.15932
March           24      2005    190.59677       1.15939
March           25      2005    190.60968       1.15947
March           26      2005    190.62258       1.15955
March           27      2005    190.63548       1.15963
March           28      2005    190.64839       1.15971
March           29      2005    190.66129       1.15979
March           30      2005    190.67419       1.15987
March           31      2005    190.68710       1.15994