Year 2015 = 100 1980 37.783985927 1981 37.2336753212 1982 33.1314609317 1983 31.1270587449 1984 27.5925320013 1985 30.7128846003 1986 41.7902259228 1987 48.5451829764 1988 61.0612670726 1989 66.2078033506 1990 64.3874451652 1991 68.27868672 1992 67.5205184738 1993 70.4752843565 1994 78.4204079375 1995 74.5036389973 1996 78.4059892916 1997 84.9716420534 1998 94.1973860071 1999 91.7425449772 2000 90.3955764028 2001 103.9032690569 2002 98.5685172566 2003 150.6553161775 2004 155.5762079215 2005 135.9276479881 2006 121.1960218284 2007 122.979544178 2008 96.6419216701 2009 85.4400378422 2010 88.1431206278 2011 83.0512907583 2012 89.3803615283 2013 91.225264698 2014 97.3574464992 2015 100 2016 85.2042769224 2017 93.7978662148 2018 94.8837005 2019 110.9515190869 2020 94.515272899 2021 91.6794454298