Year 2000 = 100 1985 46.11178736 1986 29.29901051 1987 47.28315126 1988 49.15910316 1989 51.42181664 1990 59.79847027 1991 45.36235809 1992 100.8116697 1993 63.13653787 1994 79.34368678 1995 74.60249926 1996 71.47226841 1997 91.61014496 1998 104.021389 1999 103.336295 2000 100 2001 93.86723182 2002 118.043825 2003 116.7765971 2004 130.9327659 2005 168.2904726 2006 187.2145731 2007 229.2278757 2008 251.5265267 2009 244.5566453 2010 242.0610088 2011 228.3918017 2012 238.3675571 2013 236.6314669 2014 218.7930632 2015 229.219196 2016 245.8589561 2017 242.3904379 2018 219.122609