,Instrument,"U.S. government securities/Treasury constant maturities/Inflation indexed" ,Maturity,"10-year" ,Frequency,"Monthly" ,Description,"Market yield on U.S. Treasury securities at 10-year constant maturity, quoted on investment basis, inflation-indexed" ,Note,"Yields on Treasury inflation protected securities (TIPS) adjusted to constant maturities. Source: U.S. Treasury. Additional information on both nominal and inflation-indexed yields may be found at www.treas.gov/offices/domestic-finance/debt-management/interest-rate/index.html." DATE , TCMIIY10 01/2003, 2.29 02/2003, 1.99 03/2003, 1.94 04/2003, 2.18 05/2003, 1.91 06/2003, 1.72 07/2003, 2.11 08/2003, 2.32 09/2003, 2.19 10/2003, 2.08 11/2003, 1.96 12/2003, 1.98 01/2004, 1.89 02/2004, 1.76 03/2004, 1.47 04/2004, 1.90 05/2004, 2.09 06/2004, 2.15 07/2004, 2.02 08/2004, 1.86 09/2004, 1.80 10/2004, 1.73 11/2004, 1.68 12/2004, 1.67 01/2005, 1.72 02/2005, 1.63 03/2005, 1.79 04/2005, 1.71 05/2005, 1.65 06/2005, 1.67 07/2005, 1.88 08/2005, 1.89 09/2005, 1.70 10/2005, 1.94 11/2005, 2.06 12/2005, 2.12 01/2006, 2.01 02/2006, 2.05 03/2006, 2.20 04/2006, 2.41 05/2006, 2.45 06/2006, 2.53 07/2006, 2.51 08/2006, 2.29 09/2006, 2.32 10/2006, 2.41 11/2006, 2.29 12/2006, 2.25 01/2007, 2.44 02/2007, 2.36 03/2007, 2.18 04/2007, 2.26 05/2007, 2.37 06/2007, 2.69 07/2007, 2.64 08/2007, 2.44 09/2007, 2.26 10/2007, 2.20 11/2007, 1.77 12/2007, 1.79 01/2008, 1.47 02/2008, 1.41 03/2008, 1.09 04/2008, 1.36 05/2008, 1.46 06/2008, 1.63 07/2008, 1.57 08/2008, 1.68 09/2008, 1.85