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0-7/8% 5-1/2-YEAR TREASURY INFLATION-PROTECTED SECURITIES Due April 15, 2010

Ref CPI and Index Ratios for June 2007

    Contact: Office of Financing            202-504-3550
    DESCRIPTION:                            Series D-2010
    CUSIP NUMBER:                           912828CZ1
    DATED DATE:                             October 15, 2004
    ORIGINAL ISSUE DATE:                    October 29, 2004
    ADDITIONAL ISSUE DATE:                  April 29, 2005
                                            October 28, 2005
    MATURITY DATE:                          April 15, 2010
    Ref CPI on DATED DATE:                  189.44516
    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       1.08397
    June           2        2007    205.39647       1.08420
    June           3        2007    205.44093       1.08443
    June           4        2007    205.48540       1.08467
    June           5        2007    205.52987       1.08490
    June           6        2007    205.57433       1.08514
    June           7        2007    205.61880       1.08537
    June           8        2007    205.66327       1.08561
    June           9        2007    205.70773       1.08584
    June           10       2007    205.75220       1.08608
    June           11       2007    205.79667       1.08631
    June           12       2007    205.84113       1.08655
    June           13       2007    205.88560       1.08678
    June           14       2007    205.93007       1.08702
    June           15       2007    205.97453       1.08725
    June           16       2007    206.01900       1.08749
    June           17       2007    206.06347       1.08772
    June           18       2007    206.10793       1.08796
    June           19       2007    206.15240       1.08819
    June           20       2007    206.19687       1.08843
    June           21       2007    206.24133       1.08866
    June           22       2007    206.28580       1.08889
    June           23       2007    206.33027       1.08913
    June           24       2007    206.37473       1.08936
    June           25       2007    206.41920       1.08960
    June           26       2007    206.46367       1.08983
    June           27       2007    206.50813       1.09007
    June           28       2007    206.55260       1.09030
    June           29       2007    206.59707       1.09054
    June           30       2007    206.64153       1.09077