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3-7/8% 10-YEAR TREASURY INFLATION-PROTECTED SECURITIES (TIPS) Due January 15, 2009

Ref CPI and Index Ratios for June 2007

   Contact: Office of Financing            202-504-3550
   DESCRIPTION:                            Series A-2009
   CUSIP NUMBER:                           9128274Y5
   DATED DATE:                             January 15, 1999
   ORIGINAL ISSUE DATE:                    January 15, 1999
   ADDITIONAL ISSUE DATE:                  July 15, 1999
   MATURITY DATE:                          January 15, 2009
   Ref CPI on DATED DATE:                  164.00000
   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       1.25215
   June           2        2007    205.39647       1.25242
   June           3        2007    205.44093       1.25269
   June           4        2007    205.48540       1.25296
   June           5        2007    205.52987       1.25323
   June           6        2007    205.57433       1.25350
   June           7        2007    205.61880       1.25377
   June           8        2007    205.66327       1.25404
   June           9        2007    205.70773       1.25432
   June           10       2007    205.75220       1.25459
   June           11       2007    205.79667       1.25486
   June           12       2007    205.84113       1.25513
   June           13       2007    205.88560       1.25540
   June           14       2007    205.93007       1.25567
   June           15       2007    205.97453       1.25594
   June           16       2007    206.01900       1.25621
   June           17       2007    206.06347       1.25648
   June           18       2007    206.10793       1.25676
   June           19       2007    206.15240       1.25703
   June           20       2007    206.19687       1.25730
   June           21       2007    206.24133       1.25757
   June           22       2007    206.28580       1.25784
   June           23       2007    206.33027       1.25811
   June           24       2007    206.37473       1.25838
   June           25       2007    206.41920       1.25865
   June           26       2007    206.46367       1.25892
   June           27       2007    206.50813       1.25920
   June           28       2007    206.55260       1.25947
   June           29       2007    206.59707       1.25974
   June           30       2007    206.64153       1.26001