Year Percent Change at Annual Rate 1960-01-01 1.30368717716863 1961-01-01 1.39849453999345 1962-01-01 1.49049916544240 1963-01-01 1.58405771329642 1964-01-01 1.68097072624500 1965-01-01 1.77805168331583 1966-01-01 1.87428045434377 1967-01-01 1.96216109848393 1968-01-01 2.03676477759234 1969-01-01 2.09395712342099 1970-01-01 2.14059845469280 1971-01-01 2.18154210425557 1972-01-01 2.22578800349646 1973-01-01 2.27735177539947 1974-01-01 2.34056016683039 1975-01-01 2.41009951789394 1976-01-01 2.48058115330403 1977-01-01 2.54462738206331 1978-01-01 2.60167314826596 1979-01-01 2.64876463204302 1980-01-01 2.68945203714843 1981-01-01 2.73226489430206 1982-01-01 2.77736473402571 1983-01-01 2.81744908802337 1984-01-01 2.85180501764056 1985-01-01 2.88525962953107 1986-01-01 2.90253932072273 1987-01-01 2.92549674603878 1988-01-01 2.98865166431779 1989-01-01 3.10076556455627 1990-01-01 3.23505898317491 1991-01-01 3.37715909992662 1992-01-01 3.47900265071410 1993-01-01 3.50077384575132 1994-01-01 3.42606116377536 1995-01-01 3.29361363820142 1996-01-01 3.14532391063504 1997-01-01 3.02837532091409 1998-01-01 2.95861322529726 1999-01-01 2.95175446957883 2000-01-01 2.98399477560651 2001-01-01 3.02378021363210 2002-01-01 3.04308295807465 2003-01-01 3.03967483180195 2004-01-01 3.00534210642385 2005-01-01 2.95238351590553 2006-01-01 2.89753275283891 2007-01-01 2.85407407622991 2008-01-01 2.82352171141544 2009-01-01 2.80933688387249 2010-01-01 2.80610884361564 2011-01-01 2.80342201500857 2012-01-01 2.79704040529129 2013-01-01 2.79025324304921 2014-01-01 2.78228712901218 2015-01-01 2.77297792645726 2016-01-01 2.76353418122718 2017-01-01 2.75229761863942