Year 2015 = 100 1980 3.2365087712 1981 5.5666138118 1982 8.8298113354 1983 10.5108029303 1984 11.2751642469 1985 12.1168511374 1986 13.1794357532 1987 11.9342323658 1988 12.2134217017 1989 12.1331854164 1990 12.9757212313 1991 11.1173710023 1992 10.4792262951 1993 9.0359539562 1994 6.9937520409 1995 12.5704986664 1996 10.3329371483 1997 11.597932292 1998 12.5696304385 1999 11.6466682199 2000 13.3192182314 2001 28.7201553119 2002 69.1495867586 2003 31.3248815548 2004 35.0454333365 2005 33.1556336469 2006 44.9103026099 2007 54.4558443987 2008 54.9189352228 2009 57.4983590933 2010 65.4487332882 2011 78.2624305145 2012 67.8260672711 2013 73.3766205138 2014 108.4210386594 2015 100 2016 68.3054549045 2017 50.0152708367 2018 81.2488318621 2019 69.1124756073 2020 67.4492604205 2021 64.3815114813