Year 2015 = 100 1985 1.3058235163 1986 1.0902232361 1987 1.5848819653 1988 1.6316954165 1989 1.6350632906 1990 2.0848469477 1991 1.3564691066 1992 1.6051074975 1993 2.4596481042 1994 4.0939614339 1995 7.406067477 1996 10.8578457451 1997 20.8595073328 1998 24.523180279 1999 26.0696234398 2000 31.8656103827 2001 57.079109311 2002 68.1510828635 2003 78.8873883461 2004 100.1339914183 2005 110.8669601255 2006 107.3928517536 2007 122.6356998811 2008 133.1207616279 2009 122.2152318774 2010 110.6014402456 2011 114.2974664958 2012 128.5385793607 2013 125.1012154473 2014 115.4374389187 2015 100 2016 92.4888282078 2017 78.9143696276 2018 78.281019112 2019 75.5307151686 2020 62.7633170939 2021 51.4299555796