Year 2000 = 100 1980 28.71617563 1981 30.40941854 1982 27.65311203 1983 36.64227156 1984 29.21268424 1985 35.70279256 1986 37.85718009 1987 44.43223792 1988 49.10773208 1989 53.77536041 1990 61.9042028 1991 76.11464109 1992 88.09254886 1993 82.31265416 1994 84.10678262 1995 75.01655344 1996 90.56540496 1997 83.96034592 1998 80.41157591 1999 85.60007 2000 100 2001 108.9981057 2002 122.1885266 2003 137.3004501 2004 143.8572439 2005 171.8336909 2006 176.882929 2007 180.3492079 2008 182.3636147 2009 167.9364987 2010 180.700275 2011 181.0999518 2012 174.5086136 2013 182.6773357 2014 174.3889226 2015 163.7459524 2016 161.4077962 2017 169.2637311 2018 177.9277714