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3% 10-YEAR TREASURY INFLATION-PROTECTED SECURITIES (TIPS) Due July 15, 2012

Ref CPI and Index Ratios for June 2007

     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:                     June 2007
     NUMBER OF DAYS IN MONTH:                30

     CPI-U (NSA) February 2007               203.499
     CPI-U (NSA) March 2007                  205.352
     CPI-U (NSA) April 2007                  206.686

     Month   Calendar Day    Year    Ref CPI       Index Ratio

     June           1        2007    205.35200       1.14211
     June           2        2007    205.39647       1.14236
     June           3        2007    205.44093       1.14261
     June           4        2007    205.48540       1.14286
     June           5        2007    205.52987       1.14310
     June           6        2007    205.57433       1.14335
     June           7        2007    205.61880       1.14360
     June           8        2007    205.66327       1.14384
     June           9        2007    205.70773       1.14409
     June           10       2007    205.75220       1.14434
     June           11       2007    205.79667       1.14459
     June           12       2007    205.84113       1.14483
     June           13       2007    205.88560       1.14508
     June           14       2007    205.93007       1.14533
     June           15       2007    205.97453       1.14558
     June           16       2007    206.01900       1.14582
     June           17       2007    206.06347       1.14607
     June           18       2007    206.10793       1.14632
     June           19       2007    206.15240       1.14657
     June           20       2007    206.19687       1.14681
     June           21       2007    206.24133       1.14706
     June           22       2007    206.28580       1.14731
     June           23       2007    206.33027       1.14755
     June           24       2007    206.37473       1.14780
     June           25       2007    206.41920       1.14805
     June           26       2007    206.46367       1.14830
     June           27       2007    206.50813       1.14854
     June           28       2007    206.55260       1.14879
     June           29       2007    206.59707       1.14904
     June           30       2007    206.64153       1.14929