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2% 10-YEAR TREASURY INFLATION-PROTECTED SECURITIES (TIPS)

Ref CPI and Index Ratios for January 2006

Contact: Office of Financing       202-504-3550
DESCRIPTION:                            Series A-2014
CUSIP NUMBER:                           912828BW9
DATED DATE:                             January 15, 2004
ORIGINAL ISSUE DATE:                    January 15, 2004
ADDITIONAL ISSUE DATE:                  April 15, 2004
MATURITY DATE:                          January 15, 2014
Ref CPI on DATED DATE:                  184.77419
TABLE FOR MONTH OF:                     January 2006
NUMBER OF DAYS IN MONTH:                31

CPI-U (NSA) September 2005              198.8
CPI-U (NSA) October 2005                199.2
CPI-U (NSA) November 2005               197.6

Month   Calendar Day    Year    Ref CPI       Index Ratio

January         1       2006    199.20000       1.07807
January         2       2006    199.14839       1.07779
January         3       2006    199.09677       1.07751
January         4       2006    199.04516       1.07723
January         5       2006    198.99355       1.07696
January         6       2006    198.94194       1.07668
January         7       2006    198.89032       1.07640
January         8       2006    198.83871       1.07612
January         9       2006    198.78710       1.07584
January         10      2006    198.73548       1.07556
January         11      2006    198.68387       1.07528
January         12      2006    198.63226       1.07500
January         13      2006    198.58065       1.07472
January         14      2006    198.52903       1.07444
January         15      2006    198.47742       1.07416
January         16      2006    198.42581       1.07388
January         17      2006    198.37419       1.07360
January         18      2006    198.32258       1.07332
January         19      2006    198.27097       1.07304
January         20      2006    198.21935       1.07277
January         21      2006    198.16774       1.07249
January         22      2006    198.11613       1.07221
January         23      2006    198.06452       1.07193
January         24      2006    198.01290       1.07165
January         25      2006    197.96129       1.07137
January         26      2006    197.90968       1.07109
January         27      2006    197.85806       1.07081
January         28      2006    197.80645       1.07053
January         29      2006    197.75484       1.07025
January         30      2006    197.70323       1.06997
January         31      2006    197.65161       1.06969