Year 2015 = 100 1980 73.1335797737 1981 46.7432776075 1982 44.548653327 1983 37.910773007 1984 38.5399713594 1985 36.5520600816 1986 36.0426794661 1987 28.0358746911 1988 28.3373548366 1989 25.8977953458 1990 42.5789608898 1991 32.7404488565 1992 33.0292257838 1993 36.9096453981 1994 36.6603648199 1995 35.0013456879 1996 35.057080317 1997 40.6532918319 1998 41.4404368035 1999 43.0260060107 2000 62.9809103437 2001 67.026161556 2002 37.7609381337 2003 72.5465342675 2004 85.5895539918 2005 77.4745453172 2006 76.5331665642 2007 103.8290117989 2008 130.8063487141 2009 120.6371104552 2010 91.6223938684 2011 86.785027527 2012 94.6910574795 2013 100.9222864679 2014 101.884050693 2015 100 2016 110.238000061 2017 131.407924987 2018 136.5131310015 2019 135.5359061595 2020 109.6126928331 2021 127.0591031417