Year | Value | 2022 | 129.35418764405 | 2021 | 126.23113627593 | 2020 | 122.47924203795 | 2019 | 118.39982547192 | 2018 | 120.93132112752 | 2017 | 118.02997718147 | 2016 | 119.02766058077 | 2015 | 116.61508072428 | 2014 | 115.22537829232 | 2013 | 112.70496800782 | 2012 | 108.85947998161 | 2011 | 105.82621608839 | 2010 | 100 | 2009 | 94.931226156123 | 2008 | 90.361446183809 | 2007 | 82.243781096733 | 2006 | 78.953153181407 | 2005 | 77.246753790159 | 2004 | 76.878329466017 | 2003 | 76.484049017657 | 2002 | 76.01866699904 | 2001 | 75.831222443531 | 2000 | 76.690884910508 | 1999 | 77.563469896909 | 1998 | 78.611967629588 | 1997 | 78.904917708453 | 1996 | 78.859845597308 | 1995 | 77.907758344876 | 1994 | 74.290954464812 | 1993 | 73.87406429795 | 1992 | 73.102254124167 | 1991 | 73.158590633202 | 1990 | 69.767132789279 | 1989 | 68.34745276159 | 1988 | 67.648880049553 | 1987 | 67.040445751972 | 1986 | 68.093938470932 | 1985 | 70.347398832342 | 1984 | 72.567057288332 | 1983 | 73.716322072652 | 1982 | 73.575480800063 | 1981 | 72.831838880798 | 1980 | 70.848793762756 | 1979 | 68.013144477962 | 1978 | 67.285407776977 | 1977 | 68.368086052667 | 1976 | 61.372255762992 | 1975 | 46.650106879952 | 1974 | 34.664479564251 | 1973 | 28.545235238597 | 1972 | 24.499453866133 | 1971 | 23.482389382292 | 1970 | 22.476563180042 | 1969 | 22.436675756475 | 1968 | 21.678814708701 | 1967 | 21.33977160838 | 1966 | 20.901009948943 | 1965 | 20.581910560606 | 1964 | 20.502135713273 | 1963 | 19.943711783533 |
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