Year Percent Change at Annual Rate 1960-01-01 3.351775182628780 1961-01-01 3.379255932647450 1962-01-01 3.382058497341450 1963-01-01 3.350306367027970 1964-01-01 3.283432128347800 1965-01-01 3.196267856581900 1966-01-01 3.097570227054700 1967-01-01 3.008473307003060 1968-01-01 2.940103317620390 1969-01-01 2.902271634000920 1970-01-01 2.882565733612600 1971-01-01 2.864544219279610 1972-01-01 2.838913167390330 1973-01-01 2.808705053345480 1974-01-01 2.771407229840140 1975-01-01 2.728746719541170 1976-01-01 2.693694796129640 1977-01-01 2.660424873017070 1978-01-01 2.616819006026240 1979-01-01 2.560170900778250 1980-01-01 2.498622759434220 1981-01-01 2.437065927936760 1982-01-01 2.389550659100330 1983-01-01 2.371245612415320 1984-01-01 2.387879503846920 1985-01-01 2.427392175115310 1986-01-01 2.449336675677040 1987-01-01 2.461971335609810 1988-01-01 2.509110847391500 1989-01-01 2.598341228708810 1990-01-01 2.698960343472020 1991-01-01 2.816106714050710 1992-01-01 2.878533952285990 1993-01-01 2.805168415384550 1994-01-01 2.567491209396530 1995-01-01 2.228655973599100 1996-01-01 1.871797509162870 1997-01-01 1.568335977966190 1998-01-01 1.331202741088420 1999-01-01 1.185989545041340 2000-01-01 1.113294420692560 2001-01-01 1.056130649164450 2002-01-01 1.001133051794910 2003-01-01 0.987279088618078 2004-01-01 1.018414448207510 2005-01-01 1.083596745668910 2006-01-01 1.159771972835150 2007-01-01 1.240315471441650 2008-01-01 1.338500014504300 2009-01-01 1.451958146169920 2010-01-01 1.570289696461160 2011-01-01 1.692832672514990 2012-01-01 1.796234811878400 2013-01-01 1.851415045957330 2014-01-01 1.845680528616500 2015-01-01 1.795683939216100 2016-01-01 1.732524452954650 2017-01-01 1.672995626279250