Year 2000 = 100 1980 97 1981 101 1982 93 1983 97 1984 86 1985 64 1986 75 1987 92 1988 89 1989 89 1990 107 1991 110 1992 120 1993 117 1994 115 1995 122 1996 112 1997 110 1998 101 1999 102 2000 100 2001 98.70962766 2002 97.60543516 2003 102.9670607 2004 111.8717099 2005 121.9663893 2006 131.4594046 2007 141.7868774 2008 157.1269372 2009 144.4979906 2010 154.0780245 2011 174.6962805 2012 174.6662497 2013 171.7021622 2014 171.2092861 2015 154.4834932 2016 149.0913949 2017 152.5005735 2018 160.1690441