Year Index 1982 14.869 1983 15.456 1984 16.277 1985 18.312 1986 23.32 1987 23.907 1988 27.155 1989 28.25 1990 30.207 1991 34.385 1992 37.279 1993 36.274 1994 39.023 1995 39.011 1996 40.229 1997 41.025 1998 42.276 1999 44.935 2000 48.152 2001 53.305 2002 59.697 2003 66.71 2004 73.433 2005 78.824 2006 82.649 2007 88.271 2008 93.893 2009 94.994 2010 99.765 2011 103.6 2012 106.2 2013 106.9 2014 107.3 2015 106.1 2016 113.195 2017 119.5 2018 127.493 2019 133.868 2020 140.48 2021 145.256 2022 148.888 2023 152.61 2024 156.425