Year | Value | 2023 | 119.58609994969 | 2022 | 119.49693052967 | 2021 | 115.31587550244 | 2020 | 116.0193231492 | 2019 | 118.77211186049 | 2018 | 117.58937436001 | 2017 | 115.18469867479 | 2016 | 113.609258293 | 2015 | 110.52904215706 | 2014 | 108.52285882773 | 2013 | 105.72376586815 | 2012 | 102.34632529315 | 2011 | 99.599959302512 | 2010 | 100 | 2009 | 98.075864633692 | 2008 | 95.408702119747 | 2007 | 92.159166976571 | 2006 | 89.25251022685 | 2005 | 87.49605350385 | 2004 | 85.290270642408 | 2003 | 83.329574765571 | 2002 | 82.022444181013 | 2001 | 82.430922488688 | 2000 | 83.438502314285 | 1999 | 84.030795860412 | 1998 | 85.126879319339 | 1997 | 85.440046021889 | 1996 | 83.411844206729 | 1995 | 83.790769008217 | 1994 | 81.584690622575 | 1993 | 80.923616778252 | 1992 | 78.919949662469 | 1991 | 79.056253547896 | 1990 | 78.456516452016 | 1989 | 77.734105859251 | 1988 | 76.595968415932 | 1987 | 76.364251810705 | 1986 | 77.720475470708 | 1985 | 79.546947535162 | 1984 | 81.700548925188 | 1983 | 81.437993444915 | 1982 | 79.087206005262 | 1981 | 72.63322594373 | 1980 | 65.232824964751 | 1979 | 62.802660286968 | 1978 | 61.447141295761 | 1977 | 53.069789692663 | 1976 | 45.077112397781 | 1975 | 36.798914491324 | 1974 | 31.679565699233 |
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