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1-7/8% 10-YEAR TREASURY INFLATION-PROTECTED SECURITIES (TIPS) Due July 15, 2013

Ref CPI and Index Ratios for September 2011

    Contact: Office of Financing            202-504-3550
    DESCRIPTION:                            C-2013
    CUSIP NUMBER:                           912828BD1
    DATED DATE:                             July 15, 2003
    ORIGINAL ISSUE DATE:                    July 15, 2003
    ADDITIONAL ISSUE DATE:                  October 15, 2003
    MATURITY DATE:                          July 15, 2013
    Ref CPI on DATED DATE:                  183.66452
    TABLE FOR MONTH OF:                     September 2011
    NUMBER OF DAYS IN MONTH:                30

    CPI-U (NSA) May 2011                    225.964
    CPI-U (NSA) June 2011                   225.722
    CPI-U (NSA) July 2011                   225.922

    Month   Calendar Day   Year    Ref CPI      Index Ratio

    September      1       2011    225.72200       1.22899
    September      2       2011    225.72867       1.22903
    September      3       2011    225.73533       1.22906
    September      4       2011    225.74200       1.22910
    September      5       2011    225.74867       1.22914
    September      6       2011    225.75533       1.22917
    September      7       2011    225.76200       1.22921
    September      8       2011    225.76867       1.22924
    September      9       2011    225.77533       1.22928
    September      10      2011    225.78200       1.22932
    September      11      2011    225.78867       1.22935
    September      12      2011    225.79533       1.22939
    September      13      2011    225.80200       1.22943
    September      14      2011    225.80867       1.22946
    September      15      2011    225.81533       1.22950
    September      16      2011    225.82200       1.22954
    September      17      2011    225.82867       1.22957
    September      18      2011    225.83533       1.22961
    September      19      2011    225.84200       1.22964
    September      20      2011    225.84867       1.22968
    September      21      2011    225.85533       1.22972
    September      22      2011    225.86200       1.22975
    September      23      2011    225.86867       1.22979
    September      24      2011    225.87533       1.22983
    September      25      2011    225.88200       1.22986
    September      26      2011    225.88867       1.22990
    September      27      2011    225.89533       1.22993
    September      28      2011    225.90200       1.22997
    September      29      2011    225.90867       1.23001
    September      30      2011    225.91533       1.23004