Year 2015 = 100 1980 12.9309850586 1981 21.1949640693 1982 18.1271116061 1983 12.4002245992 1984 11.2485060282 1985 12.9305945909 1986 15.091824006 1987 13.639329464 1988 12.7503554772 1989 8.0945948528 1990 10.3534017256 1991 9.4192117765 1992 22.5730748374 1993 22.308612204 1994 16.8330681719 1995 29.1183494961 1996 25.5496949913 1997 26.6211855843 1998 28.7271865098 1999 29.2533450499 2000 23.9375973876 2001 24.3280965364 2002 28.3027920343 2003 34.8245181988 2004 34.9018370453 2005 39.752812628 2006 47.9532946098 2007 79.5446751612 2008 89.3998582122 2009 80.6082776696 2010 80.2037986767 2011 83.1287543835 2012 91.3283772689 2013 117.5449525625 2014 149.4791664502 2015 100 2016 112.1632552156 2017 136.4364951331 2018 170.8378684707 2019 153.5296969029 2020 138.8301377212 2021 169.1896887451