Year 2015 = 100 1980 51.7269544594 1981 46.3476036029 1982 43.0979077717 1983 41.141780187 1984 44.0286459002 1985 46.7462434719 1986 56.7759721866 1987 80.0486845822 1988 81.9047972585 1989 62.9051193318 1990 70.2530602367 1991 64.3442929165 1992 71.9747679854 1993 54.5754863811 1994 61.7757711511 1995 65.0881356969 1996 70.3371789 1997 59.539147171 1998 61.3388191076 1999 61.3388191076 2000 54.740021952 2001 48.5911427751 2002 58.0394205571 2003 68.9874249475 2004 81.8850739359 2005 88.8588027449 2006 98.9723592728 2007 113.5173080075 2008 134.1913395131 2009 111.3424044421 2010 121.2427737102 2011 137.2954736722 2012 129.0834205753 2013 143.158804913 2014 130.0458185862 2015 100 2016 110.0170406728 2017 114.0032194172 2018 124.3498334497 2019 147.8129065707 2020 143.5550326794 2021 128.6559984958