Year 2015 = 100 1980 21.8014079144 1981 26.2808296145 1982 22.9076917157 1983 18.8576653117 1984 19.3689739662 1985 17.5119889506 1986 13.2963826884 1987 14.687096285 1988 14.5777978636 1989 17.1148753812 1990 22.7340716565 1991 21.2227549888 1992 20.9429800493 1993 22.5089459276 1994 21.8642786896 1995 24.8649588329 1996 28.4168626178 1997 26.5017970126 1998 19.7710149196 1999 26.3764072538 2000 37.4501247711 2001 33.7173913024 2002 35.0293285278 2003 40.0935815627 2004 45.6939029938 2005 61.921042956 2006 73.7586827801 2007 82.4283508997 2008 104.6889632074 2009 71.7856380114 2010 90.513094546 2011 118.8012542899 2012 119.5137631742 2013 132.5842551887 2014 121.7018265983 2015 100 2016 77.2954720766 2017 92.9601234858 2018 109.0879855639 2019 109.547851787 2020 85.0382685954 2021 135.2408669732