Are you looking for...

3-5/8% 30-YEAR TREASURY INFLATION-PROTECTED SECURITIES (TIPS)

Ref CPI and Index Ratios for April 2006

Contact: Office of Financing       202-504-3550
DESCRIPTION:                            TIPS of April 2028
CUSIP NUMBER:                           912810FD5
DATED DATE:                             April 15, 1998
ORIGINAL ISSUE DATE:                    April 15, 1998
ADDITIONAL ISSUE DATE:                  July 15, 1998
MATURITY DATE:                          April 15, 2028
Ref CPI on DATED DATE:                  161.74000
TABLE FOR MONTH OF:                     April 2006
NUMBER OF DAYS IN MONTH:                30

CPI-U (NSA) December 2005               196.8
CPI-U (NSA) January 2006                198.3
CPI-U (NSA) February 2006               198.7

Month   Calendar Day    Year    Ref CPI       Index Ratio

April           1       2006    198.30000       1.22604
April           2       2006    198.31333       1.22612
April           3       2006    198.32667       1.22621
April           4       2006    198.34000       1.22629
April           5       2006    198.35333       1.22637
April           6       2006    198.36667       1.22645
April           7       2006    198.38000       1.22654
April           8       2006    198.39333       1.22662
April           9       2006    198.40667       1.22670
April           10      2006    198.42000       1.22678
April           11      2006    198.43333       1.22687
April           12      2006    198.44667       1.22695
April           13      2006    198.46000       1.22703
April           14      2006    198.47333       1.22711
April           15      2006    198.48667       1.22720
April           16      2006    198.50000       1.22728
April           17      2006    198.51333       1.22736
April           18      2006    198.52667       1.22744
April           19      2006    198.54000       1.22753
April           20      2006    198.55333       1.22761
April           21      2006    198.56667       1.22769
April           22      2006    198.58000       1.22777
April           23      2006    198.59333       1.22786
April           24      2006    198.60667       1.22794
April           25      2006    198.62000       1.22802
April           26      2006    198.63333       1.22810
April           27      2006    198.64667       1.22819
April           28      2006    198.66000       1.22827
April           29      2006    198.67333       1.22835
April           30      2006    198.68667       1.22843