Year 2000 = 100 1980 173 1981 191 1982 163 1983 158 1984 139 1985 140 1986 159 1987 175 1988 172 1989 167 1990 168 1991 178 1992 140 1993 131 1994 133 1995 142 1996 114 1997 117 1998 112 1999 113 2000 100 2001 95.33060171 2002 90.39700665 2003 97.90137103 2004 114.7192811 2005 130.063096 2006 158.506582 2007 165.7340627 2008 189.2041335 2009 147.6153315 2010 179.5039053 2011 204.666901 2012 188.8477961 2013 178.5628197 2014 176.0095341 2015 148.6737994 2016 142.2841678 2017 174.7352655 2018 191.1000236