Year Percent Change at Annual Rate 1961-01-01 2.10872261332507 1962-01-01 2.14419791682290 1963-01-01 2.17598301303283 1964-01-01 2.20396957914457 1965-01-01 2.22843626190421 1966-01-01 2.25137286398835 1967-01-01 2.27180877912021 1968-01-01 2.28711616325157 1969-01-01 2.29677760389360 1970-01-01 2.30282553827638 1971-01-01 2.30555627745571 1972-01-01 2.30930095076596 1973-01-01 2.31875336158969 1974-01-01 2.33587964204783 1975-01-01 2.35715945914816 1976-01-01 2.37721861161313 1977-01-01 2.39223032763338 1978-01-01 2.40240461700985 1979-01-01 2.40658370195676 1980-01-01 2.40557986265964 1981-01-01 2.40206791230328 1982-01-01 2.39609112720096 1983-01-01 2.38530076131076 1984-01-01 2.36939590422205 1985-01-01 2.34946777838347 1986-01-01 2.32637232714130 1987-01-01 2.30184259363047 1988-01-01 2.27717529857743 1989-01-01 2.25312630026302 1990-01-01 2.22873711003271 1991-01-01 2.20358990117660 1992-01-01 2.17566154963991 1993-01-01 2.14319309187036 1994-01-01 2.10541043503073 1995-01-01 2.06405121381515 1996-01-01 2.02038517963410 1997-01-01 1.97744165141643 1998-01-01 1.93757514487768 1999-01-01 1.90208694143605 2000-01-01 1.86900021661928 2001-01-01 1.83744793823600 2002-01-01 1.80325579942100 2003-01-01 1.76259091736313 2004-01-01 1.71361327728825 2005-01-01 1.65965954176697 2006-01-01 1.60464377650081 2007-01-01 1.55342896286260 2008-01-01 1.50819480743590 2009-01-01 1.47093236313506 2010-01-01 1.43953503057419 2011-01-01 1.40984390214555 2012-01-01 1.37966477942639 2013-01-01 1.35361739896986 2014-01-01 1.32626360298084 2015-01-01 1.29814947533346 2016-01-01 1.27243267472549 2017-01-01 1.24520019663068