Year 2000 = 100 1980 36.36661748 1981 50.12297098 1982 30.28365306 1983 31.51882822 1984 26.69836585 1985 37.76028857 1986 36.83663989 1987 41.88118271 1988 32.27305023 1989 33.3879871 1990 37.55806963 1991 52.98682844 1992 59.58900366 1993 65.90697929 1994 66.07640597 1995 77.81603542 1996 89.3589113 1997 101.1586599 1998 108.3784227 1999 95.92282888 2000 100 2001 93.33224026 2002 97.00382576 2003 88.3154069 2004 102.5773078 2005 132.8536919 2006 159.3557414 2007 195.9707056 2008 277.7159097 2009 248.3979887 2010 305.5280647 2011 433.2578565 2012 468.8354375 2013 510.343171 2014 574.8924414 2015 524.7968627 2016 463.4233681 2017 508.4820913 2018 542.79426