Year Percent Change at Annual Rate 1960-01-01 7.12354410884841 1961-01-01 8.17620303597011 1962-01-01 8.99904761592168 1963-01-01 9.25222942095397 1964-01-01 9.05602784736661 1965-01-01 8.59735966356629 1966-01-01 8.09814361361859 1967-01-01 7.76969280347302 1968-01-01 7.69867922643510 1969-01-01 7.91137620342747 1970-01-01 8.21801816832309 1971-01-01 8.66277908196008 1972-01-01 8.89535434426778 1973-01-01 8.58890728845832 1974-01-01 7.75058728173151 1975-01-01 6.73528799921735 1976-01-01 5.57307710978153 1977-01-01 4.83254694512464 1978-01-01 5.15418342854433 1979-01-01 6.65560142319100 1980-01-01 8.61054387690141 1981-01-01 10.33681400600940 1982-01-01 11.14368653490000 1983-01-01 10.94441502833630 1984-01-01 9.83256602828451 1985-01-01 8.32044688858278 1986-01-01 6.98607687976947 1987-01-01 5.95319081900369 1988-01-01 4.95474461978139 1989-01-01 3.99229754004093 1990-01-01 3.10688252544275 1991-01-01 2.29195372705093 1992-01-01 1.63298332314971 1993-01-01 1.21335419667132 1994-01-01 1.09631588369611 1995-01-01 1.24640288792422 1996-01-01 1.70874022033401 1997-01-01 2.32839742054834 1998-01-01 2.91660228954383 1999-01-01 3.39659235174980 2000-01-01 3.92918322562974 2001-01-01 4.07266951208428 2002-01-01 4.55872587940434 2003-01-01 6.43687189547695 2004-01-01 9.71704987106384 2005-01-01 13.07603945835260 2006-01-01 15.55126432654420 2007-01-01 16.33163790273780 2008-01-01 15.51853975713420 2009-01-01 13.53942082143570 2010-01-01 11.22068632822880 2011-01-01 9.24508262787044 2012-01-01 7.76010356468356 2013-01-01 6.46572291554330 2014-01-01 5.36123596355156 2015-01-01 4.41261562420118 2016-01-01 3.49506991849135 2017-01-01 2.66503774458275