Are you looking for...

3-5/8% 10-YEAR TREASURY INFLATION-PROTECTED SECURITIES (TIPS)

Ref CPI and Index Ratios for May 2006

Contact: Office of Financing      202-504-3550
DESCRIPTION:                            Series A-2008
CUSIP NUMBER:                           9128273T7
DATED DATE:                             January 15, 1998
ORIGINAL ISSUE DATE:                    January 15, 1998
ADDITIONAL ISSUE DATE:                  October 15, 1998
MATURITY DATE:                          January 15, 2008
Ref CPI on DATED DATE:                  161.55484
TABLE FOR MONTH OF:                     May 2006
NUMBER OF DAYS IN MONTH:                31

CPI-U (NSA) January 2006                198.3
CPI-U (NSA) February 2006               198.7
CPI-U (NSA) March 2006                  199.8

Month   Calendar Day    Year    Ref CPI       Index Ratio

May             1       2006    198.70000       1.22992
May             2       2006    198.73548       1.23014
May             3       2006    198.77097       1.23036
May             4       2006    198.80645       1.23058
May             5       2006    198.84194       1.23080
May             6       2006    198.87742       1.23102
May             7       2006    198.91290       1.23124
May             8       2006    198.94839       1.23146
May             9       2006    198.98387       1.23168
May             10      2006    199.01935       1.23190
May             11      2006    199.05484       1.23212
May             12      2006    199.09032       1.23234
May             13      2006    199.12581       1.23256
May             14      2006    199.16129       1.23278
May             15      2006    199.19677       1.23300
May             16      2006    199.23226       1.23322
May             17      2006    199.26774       1.23344
May             18      2006    199.30323       1.23366
May             19      2006    199.33871       1.23388
May             20      2006    199.37419       1.23410
May             21      2006    199.40968       1.23432
May             22      2006    199.44516       1.23454
May             23      2006    199.48065       1.23476
May             24      2006    199.51613       1.23497
May             25      2006    199.55161       1.23519
May             26      2006    199.58710       1.23541
May             27      2006    199.62258       1.23563
May             28      2006    199.65806       1.23585
May             29      2006    199.69355       1.23607
May             30      2006    199.72903       1.23629
May             31      2006    199.76452       1.23651