Title: 20-Year Treasury Inflation-Indexed Security, Constant Maturity Series ID: FII20 Source: Board of Governors of the Federal Reserve System Release: H.15 Selected Interest Rates Seasonal Adjustment: Not Seasonally Adjusted Frequency: Monthly Units: Percent Date Range: 2004-07-01 to 2012-04-01 Last Updated: 2012-05-07 4:01 PM CDT Notes: For further information regarding treasury constant maturity data, please refer to http://www.federalreserve.gov/releases/h15/current/h15.pdf and http://www.treasury.gov/resource-center/data-chart-center/interest-rates/Pages/yieldmethod.aspx. DATE VALUE 2004-07-01 2.44 2004-08-01 2.23 2004-09-01 2.16 2004-10-01 2.13 2004-11-01 2.09 2004-12-01 2.02 2005-01-01 1.98 2005-02-01 1.85 2005-03-01 1.95 2005-04-01 1.87 2005-05-01 1.82 2005-06-01 1.80 2005-07-01 2.00 2005-08-01 2.02 2005-09-01 1.93 2005-10-01 2.09 2005-11-01 2.16 2005-12-01 2.14 2006-01-01 2.05 2006-02-01 2.01 2006-03-01 2.17 2006-04-01 2.43 2006-05-01 2.48 2006-06-01 2.54 2006-07-01 2.52 2006-08-01 2.31 2006-09-01 2.31 2006-10-01 2.38 2006-11-01 2.23 2006-12-01 2.26 2007-01-01 2.42 2007-02-01 2.38 2007-03-01 2.27 2007-04-01 2.35 2007-05-01 2.45 2007-06-01 2.67 2007-07-01 2.62 2007-08-01 2.47 2007-09-01 2.30 2007-10-01 2.26 2007-11-01 1.99 2007-12-01 2.08 2008-01-01 1.81 2008-02-01 1.87 2008-03-01 1.76 2008-04-01 1.91 2008-05-01 2.00 2008-06-01 2.19 2008-07-01 2.09 2008-08-01 2.15 2008-09-01 2.25 2008-10-01 2.87 2008-11-01 3.00 2008-12-01 2.32 2009-01-01 2.46 2009-02-01 2.31 2009-03-01 2.26 2009-04-01 2.22 2009-05-01 2.36 2009-06-01 2.36 2009-07-01 2.31 2009-08-01 2.22 2009-09-01 2.13 2009-10-01 2.04 2009-11-01 1.90 2009-12-01 1.99 2010-01-01 2.00 2010-02-01 2.03 2010-03-01 1.98 2010-04-01 1.90 2010-05-01 1.72 2010-06-01 1.69 2010-07-01 1.80 2010-08-01 1.65 2010-09-01 1.58 2010-10-01 1.32 2010-11-01 1.44 2010-12-01 1.67 2011-01-01 1.70 2011-02-01 1.85 2011-03-01 1.58 2011-04-01 1.48 2011-05-01 1.47 2011-06-01 1.53 2011-07-01 1.36 2011-08-01 0.81 2011-09-01 0.69 2011-10-01 0.72 2011-11-01 0.55 2011-12-01 0.56 2012-01-01 0.51 2012-02-01 0.45 2012-03-01 0.56 2012-04-01 0.50