Year 2015 = 100 1980 5.5658342417 1981 6.2159326044 1982 6.1111237665 1983 6.6811547519 1984 7.6668329778 1985 8.1634600736 1986 9.2730986519 1987 12.1489285757 1988 15.3426633909 1989 16.7954096088 1990 18.6308204304 1991 22.2001487052 1992 27.068145716 1993 30.7068098362 1994 34.8284974012 1995 40.0615250342 1996 41.5003201295 1997 45.2101395072 1998 41.5256315041 1999 40.9844835481 2000 48.5438120938 2001 47.574820614 2002 50.9663782693 2003 57.2762294705 2004 65.1269651027 2005 69.6155523772 2006 76.1199956239 2007 82.3858545293 2008 83.6208789149 2009 74.7312839078 2010 87.8705567017 2011 93.4712754783 2012 97.1269876852 2013 109.5068405974 2014 106.0979840633 2015 100 2016 99.2531143732 2017 105.40938805 2018 110.0400424314 2019 99.8762175025 2020 97.382319933 2021 115.5857288358