Year Percent Change at Annual Rate 1960-01-01 3.316314509436510 1961-01-01 3.405043431177450 1962-01-01 3.441192678144750 1963-01-01 3.386928400417190 1964-01-01 3.227912559398870 1965-01-01 3.004237626377180 1966-01-01 2.768335071832300 1967-01-01 2.558214737176500 1968-01-01 2.373913064055010 1969-01-01 2.226829713111380 1970-01-01 2.108846673671470 1971-01-01 1.997418037952920 1972-01-01 1.888282865779780 1973-01-01 1.800082483290960 1974-01-01 1.735563413992690 1975-01-01 1.689513079426110 1976-01-01 1.653243089761870 1977-01-01 1.623336069787390 1978-01-01 1.603866455500910 1979-01-01 1.593763249428150 1980-01-01 1.591150465522300 1981-01-01 1.590058321015820 1982-01-01 1.591254635359610 1983-01-01 1.601673530407280 1984-01-01 1.622045544501050 1985-01-01 1.646583944999930 1986-01-01 1.668722482305330 1987-01-01 1.680347942465390 1988-01-01 1.676389792445020 1989-01-01 1.653225789620850 1990-01-01 0.449521196384277 1991-01-01 1.552352725387180 1992-01-01 1.515077093988710 1993-01-01 1.519152694675420 1994-01-01 1.351730096652350 1995-01-01 1.151694446947460 1996-01-01 1.009848043298400 1997-01-01 0.964673773704232 1998-01-01 0.949138146647058 1999-01-01 0.877598699856844 2000-01-01 0.821519963674211 2001-01-01 0.774765939386613 2002-01-01 0.746173582716985 2003-01-01 0.757650955616913 2004-01-01 0.875427280482454 2005-01-01 1.022265592398280 2006-01-01 1.098586574418120 2007-01-01 1.133855466156450 2008-01-01 2.099854032592510 2009-01-01 2.076148263846450 2010-01-01 1.189787707860070 2011-01-01 1.303000854876510 2012-01-01 1.328763827337550 2013-01-01 1.293447027005910 2014-01-01 1.248208997355880 2015-01-01 1.191209858070180 2016-01-01 1.117857210139110 2017-01-01 1.066429219505520