Year 2015 = 100 1980 8.7656071402 1981 9.6205988309 1982 10.1367015592 1983 9.1814490526 1984 8.3196129901 1985 7.6599634088 1986 7.1431207472 1987 7.9947827433 1988 9.2524825469 1989 9.2567371575 1990 10.3396279736 1991 9.0754537617 1992 12.054235929 1993 18.1866092533 1994 21.9813516804 1995 25.6261841765 1996 25.3129997132 1997 28.4468791697 1998 27.0724193143 1999 19.7171167484 2000 21.3448249864 2001 23.7413427893 2002 23.5139927189 2003 25.6920398559 2004 30.9775131675 2005 39.2255671836 2006 48.3971194605 2007 60.8555417212 2008 73.3824982661 2009 60.856701599 2010 74.8933657475 2011 100.3236726913 2012 109.2310509125 2013 109.877058124 2014 118.4455111329 2015 100 2016 83.0398821109 2017 85.2344639526 2018 94.7744727115 2019 97.4934602754 2020 80.4487480637 2021 113.0301064714