Year 2015 = 100 1980 18.8237379659 1981 21.8995383766 1982 17.6763207957 1983 15.0642458662 1984 15.5205180999 1985 10.9312316354 1986 12.3975138217 1987 14.6146624391 1988 17.8404832478 1989 17.6681986745 1990 17.5810530662 1991 17.9914591908 1992 18.8604308554 1993 19.1024701373 1994 22.3241821059 1995 29.1883402508 1996 28.8405187372 1997 31.5313576856 1998 27.942298362 1999 25.5094588996 2000 28.3751641441 2001 26.9924780856 2002 27.9661872027 2003 37.9813444805 2004 51.0894376412 2005 59.5350981383 2006 75.2160193869 2007 84.5183336657 2008 97.1224678792 2009 70.7620885077 2010 92.5314581144 2011 118.8995516147 2012 121.5026047856 2013 120.7150862685 2014 116.5296054681 2015 100 2016 87.6165351534 2017 97.0609655906 2018 108.9049597735 2019 102.7602513248 2020 80.3257056155 2021 108.9224597587