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

Ref CPI and Index Ratios for February 2005

Contact: Office of Financing       202-504-3550
DESCRIPTION:                            Series C-2012
CUSIP NUMBER:                           912828AF7
DATED DATE:                             July 15, 2002
ORIGINAL ISSUE DATE:                    July 15, 2002
ADDITIONAL ISSUE DATE:                  October 15, 2002
                                        January 15, 2003
MATURITY DATE:                          July 15, 2012
Ref CPI on DATED DATE:                  179.80000
TABLE FOR MONTH OF:                     February 2005
NUMBER OF DAYS IN MONTH:                28

CPI-U (NSA) October 2004                190.9
CPI-U (NSA) November 2004               191.0
CPI-U (NSA) December 2004               190.3

Month   Calendar Day    Year    Ref CPI       Index Ratio

February        1       2005    191.00000       1.06229
February        2       2005    190.97500       1.06215
February        3       2005    190.95000       1.06201
February        4       2005    190.92500       1.06187
February        5       2005    190.90000       1.06174
February        6       2005    190.87500       1.06160
February        7       2005    190.85000       1.06146
February        8       2005    190.82500       1.06132
February        9       2005    190.80000       1.06118
February        10      2005    190.77500       1.06104
February        11      2005    190.75000       1.06090
February        12      2005    190.72500       1.06076
February        13      2005    190.70000       1.06062
February        14      2005    190.67500       1.06048
February        15      2005    190.65000       1.06034
February        16      2005    190.62500       1.06021
February        17      2005    190.60000       1.06007
February        18      2005    190.57500       1.05993
February        19      2005    190.55000       1.05979
February        20      2005    190.52500       1.05965
February        21      2005    190.50000       1.05951
February        22      2005    190.47500       1.05937
February        23      2005    190.45000       1.05923
February        24      2005    190.42500       1.05909
February        25      2005    190.40000       1.05895
February        26      2005    190.37500       1.05882
February        27      2005    190.35000       1.05868
February        28      2005    190.32500       1.05854