Year 2015 = 100 1980 38.0960905876 1981 41.6235063828 1982 39.8597984852 1983 35.2741579515 1984 37.0378658491 1985 34.921416372 1986 29.6302926793 1987 31.7467421564 1988 30.3357758383 1989 28.9248095203 1990 33.510450054 1991 32.8049668949 1992 31.0412589973 1993 31.0412589973 1994 29.9830342588 1995 33.8631916335 1996 36.3323826901 1997 35.626899531 1998 35.2741579515 1999 34.5686747925 2000 35.2741579515 2001 36.0852371949 2002 36.7595762002 2003 40.6437259393 2004 47.1623373117 2005 52.2 2006 57.1 2007 64.8 2008 78.1 2009 68.7 2010 85.2 2011 104.5 2012 106 2013 105 2014 110.9 2015 100 2016 104.6 2017 100.7 2018 101.4 2019 93.8 2020 92.2 2021 98.3 2022 97.6