Year 2015 = 100 1980 42.539233982 1981 47.1919626988 1982 45.8626116369 1983 43.203909513 1984 42.539233982 1985 40.5452073891 1986 39.2158563272 1987 43.203909513 1988 48.5213137608 1989 51.1800158846 1990 53.8387180085 1991 56.4974201324 1992 56.4974201324 1993 57.1620956634 1994 58.4914467253 1995 66.4675530969 1996 73.7789839376 1997 70.4556062827 1998 65.138202035 1999 63.1441754421 2000 66.4675530969 2001 66.7834544335 2002 67.2812383136 2003 69.5978480268 2004 72.6324153233 2005 77.2 2006 82.2 2007 86.6 2008 97.5 2009 93.2 2010 101.4 2011 112.5 2012 114.8 2013 112.5 2014 111.1 2015 100 2016 97.2 2017 102.5 2018 108.4 2019 108.6 2020 104.7 2021 113.5 2022 128.2