| Year | Value | | 2024 | 105.55346135045 | | 2023 | 104.793913388 | | 2022 | 104.45991760485 | | 2021 | 101.43796667245 | | 2020 | 98.588223703155 | | 2019 | 100.37852300705 | | 2018 | 102.12480078958 | | 2017 | 103.34371876833 | | 2016 | 104.84764819371 | | 2015 | 104.78663001264 | | 2014 | 104.85557608804 | | 2013 | 105.1413431401 | | 2012 | 104.98941373271 | | 2011 | 105.48250098721 | | 2010 | 105.1483998991 | | 2009 | 103.76192142809 | | 2008 | 104.65525247287 | | 2007 | 102.34277195126 | | 2006 | 101.73052662382 | | 2005 | 102.82511954803 | | 2004 | 101.98123683151 | | 2003 | 102.02839981411 | | 2002 | 99.905762926928 | | 2001 | 98.886136562784 | | 2000 | 100.31113114232 | | 1999 | 98.685548480566 | | 1998 | 98.904554782278 | | 1997 | 97.878169307877 | | 1996 | 96.250596641198 | | 1995 | 96.152524187989 | | 1994 | 103.55189706823 | | 1993 | 102.2754254233 | | 1992 | 105.16437670107 | | 1991 | 103.33845303941 | | 1990 | 101.66814119802 | | 1989 | 100.77724852284 | | 1988 | 99.442178800287 | | 1987 | 89.257063954781 | | 1986 | 92.44397948734 | | 1985 | 89.69577542367 | | 1984 | 87.857694596919 | | 1983 | 86.193775302881 | | 1982 | 89.385256267638 | | 1981 | 97.146379418753 | | 1980 | 96.890550822464 | | 1979 | 101.2463559322 | | 1978 | 100.5858237056 | | 1977 | 99.917312060573 | | 1976 | 101.37509846827 | | 1975 | 102.73016363636 |
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