Year Index 1980 36.75 1981 40.318 1982 43.231 1983 46.396 1984 50.389 1985 54.631 1986 60.267 1987 62.631 1988 65.964 1989 68.577 1990 72.337 1991 76.241 1992 79.739 1993 82.159 1994 82.697 1995 88.931 1996 89.319 1997 89.956 1998 90.308 1999 90.822 2000 90.148 2001 90.736 2002 91.833 2003 92.809 2004 93.94 2005 95.058 2006 96.53 2007 100 2008 104.53 2009 104.684 2010 105.705 2011 104.975 2012 105.363 2013 106.74 2014 107.143 2015 109.411 2016 110.997 2017 111.871 2018 113.368 2019 114.924 2020 116.961 2021 119.033 2022 121.148 2023 123.207 2024 125.302