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3-7/8% TREASURY 10-YEAR INFLATION-INDEXED NOTES

Ref CPI and Index Ratios for April 2004

Contact: Office of Financing      202-504-3550
DESCRIPTION:                            Series A-2009
CUSIP NUMBER:                           9128274Y5
DATED DATE:                             January 15, 1999
ORIGINAL ISSUE DATE:                    January 15, 1999
ADDITIONAL ISSUE DATE:                  July 15, 1999
MATURITY DATE:                          January 15, 2009
Ref CPI on DATED DATE:                  164.00000
TABLE FOR MONTH OF:                     April 2004
NUMBER OF DAYS IN MONTH:                30

CPI-U (NSA) December 2003               184.3
CPI-U (NSA) January 2004                185.2
CPI-U (NSA) February 2004               186.2

Month   Calendar Day    Year    Ref CPI       Index Ratio

April           1       2004    185.20000       1.12927
April           2       2004    185.23333       1.12947
April           3       2004    185.26667       1.12967
April           4       2004    185.30000       1.12988
April           5       2004    185.33333       1.13008
April           6       2004    185.36667       1.13028
April           7       2004    185.40000       1.13049
April           8       2004    185.43333       1.13069
April           9       2004    185.46667       1.13089
April           10      2004    185.50000       1.13110
April           11      2004    185.53333       1.13130
April           12      2004    185.56667       1.13150
April           13      2004    185.60000       1.13171
April           14      2004    185.63333       1.13191
April           15      2004    185.66667       1.13211
April           16      2004    185.70000       1.13232
April           17      2004    185.73333       1.13252
April           18      2004    185.76667       1.13272
April           19      2004    185.80000       1.13293
April           20      2004    185.83333       1.13313
April           21      2004    185.86667       1.13333
April           22      2004    185.90000       1.13354
April           23      2004    185.93333       1.13374
April           24      2004    185.96667       1.13394
April           25      2004    186.00000       1.13415
April           26      2004    186.03333       1.13435
April           27      2004    186.06667       1.13455
April           28      2004    186.10000       1.13476
April           29      2004    186.13333       1.13496
April           30      2004    186.16667       1.13516