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

Ref CPI and Index Ratios for December 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:                     December 2011
    NUMBER OF DAYS IN MONTH:                31

    CPI-U (NSA) August 2011                 226.545
    CPI-U (NSA) September 2011              226.889
    CPI-U (NSA) October 2011                226.421

    Month   Calendar Day   Year    Ref CPI      Index Ratio

    December       1       2011    226.88900       1.23534
    December       2       2011    226.87390       1.23526
    December       3       2011    226.85881       1.23518
    December       4       2011    226.84371       1.23510
    December       5       2011    226.82861       1.23502
    December       6       2011    226.81352       1.23493
    December       7       2011    226.79842       1.23485
    December       8       2011    226.78332       1.23477
    December       9       2011    226.76823       1.23469
    December       10      2011    226.75313       1.23460
    December       11      2011    226.73803       1.23452
    December       12      2011    226.72294       1.23444
    December       13      2011    226.70784       1.23436
    December       14      2011    226.69274       1.23428
    December       15      2011    226.67765       1.23419
    December       16      2011    226.66255       1.23411
    December       17      2011    226.64745       1.23403
    December       18      2011    226.63235       1.23395
    December       19      2011    226.61726       1.23387
    December       20      2011    226.60216       1.23378
    December       21      2011    226.58706       1.23370
    December       22      2011    226.57197       1.23362
    December       23      2011    226.55687       1.23354
    December       24      2011    226.54177       1.23345
    December       25      2011    226.52668       1.23337
    December       26      2011    226.51158       1.23329
    December       27      2011    226.49648       1.23321
    December       28      2011    226.48139       1.23313
    December       29      2011    226.46629       1.23304
    December       30      2011    226.45119       1.23296
    December       31      2011    226.43610       1.23288