Year 2015 = 100 1980 4.0909162867 1981 5.5168474437 1982 5.5744873409 1983 5.8932188513 1984 5.9208729579 1985 6.8656047308 1986 7.5509732726 1987 7.0711843132 1988 10.3846386657 1989 7.3596039232 1990 6.6343113954 1991 6.7742287819 1992 10.1879129636 1993 7.3398824359 1994 7.4745820666 1995 10.5896385426 1996 12.0417890466 1997 12.9253746823 1998 12.6065823405 1999 17.158024261 2000 16.5194966843 2001 18.0092686389 2002 18.5317260195 2003 23.4765431727 2004 38.7529288663 2005 36.4232272491 2006 39.5662689287 2007 49.5873425929 2008 51.224677413 2009 49.9175439565 2010 80.5046366794 2011 98.3848231937 2012 93.4782875292 2013 85.7211957867 2014 87.8854630365 2015 100 2016 94.5204678675 2017 97.0033897161 2018 98.7709381308 2019 92.5375625387 2020 84.7934827247 2021 115.0623488524