Year Percent Change at Annual Rate 1960-01-01 2.96030495263815 1961-01-01 2.93451766643696 1962-01-01 2.91157597949563 1963-01-01 2.89787367621596 1964-01-01 2.89596210369477 1965-01-01 2.89962582798881 1966-01-01 2.90294392896650 1967-01-01 2.89895373231483 1968-01-01 2.88413363527910 1969-01-01 2.85618722019854 1970-01-01 2.81926699502673 1971-01-01 2.78362499288089 1972-01-01 2.74861790790717 1973-01-01 2.70582152240887 1974-01-01 2.65389947607460 1975-01-01 2.59840392284820 1976-01-01 2.53963985200738 1977-01-01 2.48879826271298 1978-01-01 2.45847571236010 1979-01-01 2.45366118998191 1980-01-01 2.46459840472643 1981-01-01 2.48188546059456 1982-01-01 2.49106428182624 1983-01-01 2.48560575588894 1984-01-01 2.45978999607644 1985-01-01 2.42182837751888 1986-01-01 2.38092666354371 1987-01-01 2.34824446618265 1988-01-01 2.32787870802043 1989-01-01 2.32380137815992 1990-01-01 2.32995973546316 1991-01-01 2.34134585368348 1992-01-01 2.34771290543368 1993-01-01 2.34290999194585 1994-01-01 2.32326224589059 1995-01-01 2.29536782649617 1996-01-01 2.26258197135393 1997-01-01 2.23801068851864 1998-01-01 2.23310212861958 1999-01-01 2.25315099351516 2000-01-01 2.28797737855515 2001-01-01 2.32625536601766 2002-01-01 2.35284263148622 2003-01-01 2.36059487999977 2004-01-01 2.34380241125463 2005-01-01 2.31040704342986 2006-01-01 2.27224203193156 2007-01-01 2.23853100853033 2008-01-01 2.20952320211718 2009-01-01 2.18803814465705 2010-01-01 2.17103957053680 2011-01-01 2.15362718283611 2012-01-01 2.13202825156564 2013-01-01 2.10689204475385 2014-01-01 2.07715182146065 2015-01-01 2.04426638203996 2016-01-01 2.01036784468901 2017-01-01 1.97662440108666