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1-5/8% 10-YEAR TREASURY INFLATION-PROTECTED SECURITIES (TIPS) Due January 15, 2015

Ref CPI and Index Ratios for November 2006

    Contact: Office of Financing             202-504-3550
     DESCRIPTION:                            Series A-2015
     CUSIP NUMBER:                           912828DH0
     DATED DATE:                             January 15, 2005
     ORIGINAL ISSUE DATE:                    January 18, 2005
     ADDITIONAL ISSUE DATE:                  April 15, 2005
     MATURITY DATE:                          January 15, 2015
     Ref CPI on DATED DATE:                  190.94516
     TABLE FOR MONTH OF:                     November 2006
     NUMBER OF DAYS IN MONTH:                30

     CPI-U (NSA) July 2006                   203.5
     CPI-U (NSA) August 2006                 203.9
     CPI-U (NSA) September 2006              202.9

     Month   Calendar Day    Year    Ref CPI      Index Ratio

     November       1       2006    203.90000       1.06785
     November       2       2006    203.86667       1.06767
     November       3       2006    203.83333       1.06750
     November       4       2006    203.80000       1.06732
     November       5       2006    203.76667       1.06715
     November       6       2006    203.73333       1.06697
     November       7       2006    203.70000       1.06680
     November       8       2006    203.66667       1.06662
     November       9       2006    203.63333       1.06645
     November       10      2006    203.60000       1.06627
     November       11      2006    203.56667       1.06610
     November       12      2006    203.53333       1.06593
     November       13      2006    203.50000       1.06575
     November       14      2006    203.46667       1.06558
     November       15      2006    203.43333       1.06540
     November       16      2006    203.40000       1.06523
     November       17      2006    203.36667       1.06505
     November       18      2006    203.33333       1.06488
     November       19      2006    203.30000       1.06470
     November       20      2006    203.26667       1.06453
     November       21      2006    203.23333       1.06435
     November       22      2006    203.20000       1.06418
     November       23      2006    203.16667       1.06401
     November       24      2006    203.13333       1.06383
     November       25      2006    203.10000       1.06366
     November       26      2006    203.06667       1.06348
     November       27      2006    203.03333       1.06331
     November       28      2006    203.00000       1.06313
     November       29      2006    202.96667       1.06296
     November       30      2006    202.93333       1.06278