Year 2015 = 100 1980 9.7232440781 1981 6.7314766697 1982 9.7232440781 1983 8.2273603751 1984 9.7232440781 1985 10.4711859309 1986 14.9588370448 1987 20.9423718617 1988 17.2026626005 1989 18.6985463036 1990 18.6985463036 1991 12.9749309594 1992 11.7839139442 1993 9.0525710326 1994 9.0525710326 1995 10.1810951959 1996 21.7096882875 1997 23.3566301584 1998 20.9610783471 1999 20.5867733768 2000 23.6560741337 2001 23.9555181136 2002 26.667731936 2003 27.8849716951 2004 28.4329541728 2005 29.5700926671 2006 41.3015590629 2007 43.4710306538 2008 51.4676820504 2009 57.9184539016 2010 63.7314100906 2011 69.3968901263 2012 88.3359730263 2013 89.5532127855 2014 96.6927058048 2015 100 2016 1296.6891322 2017 2367.1188567187 2018 2636.587742569 2019 2991.5920507328 2020 2084.5882248256 2021 2455.3657453463