Year 2015 = 100 1980 49.9683842933 1981 55.3018478049 1982 36.5102682191 1983 22.5602259643 1984 18.4693679545 1985 13.5161633767 1986 9.9285458352 1987 11.4117032295 1988 11.9911922561 1989 13.955453443 1990 21.8493926518 1991 23.4634024056 1992 24.7374911799 1993 20.8552098673 1994 20.962941698 1995 24.5836222615 1996 29.8349080029 1997 29.8363818387 1998 19.0724497119 1999 24.937834728 2000 38.1149313761 2001 33.4384425607 2002 35.5948153282 2003 45.8094970731 2004 61.8997333057 2005 88.7795955767 2006 103.8097982047 2007 114.6297362096 2008 153.997430103 2009 94.479910729 2010 123.3813878168 2011 179.1691138279 2012 190.8134186822 2013 184.6581788025 2014 168.2300569431 2015 100 2016 90.1888142082 2017 108.9829377751 2018 144.6195420168 2019 128.5202702586 2020 85.4108270725 2021 135.6811576616