Year | Value | 2022 | 71.137997159826 | 2021 | 67.978841559444 | 2020 | 65.304636397519 | 2019 | 68.169353961725 | 2018 | 69.524515672208 | 2017 | 71.904822747424 | 2016 | 74.025338709878 | 2015 | 78.495019992948 | 2014 | 75.035250329955 | 2013 | 63.744183309797 | 2012 | 65.098589755246 | 2011 | 59.466144345701 | 2010 | 69.6909657733 | 2009 | 81.084103730233 | 2008 | 77.89458249572 | 2007 | 76.873871146496 | 2006 | 72.059637769664 | 2005 | 85.823265456938 | 2004 | 93.426466312605 | 2003 | 95.593150423496 | 2002 | 97.694512665638 | 2001 | 97.118675151163 | 2000 | 96.610342451639 | 1999 | 92.737819798733 | 1998 | 92.710369224268 | 1997 | 96.969541765658 | 1996 | 92.063741371509 | 1995 | 83.590649747119 | 1994 | 57.33640159368 | 1993 | 93.285847870636 | 1992 | 87.737501373626 | 1991 | 83.964753251237 | 1990 | 95.194243259825 | 1989 | 88.625202797606 | 1988 | 85.061633454998 | 1987 | 89.263001968818 | 1986 | 93.074335559473 | 1985 | 93.536075230687 | 1984 | 103.70621703099 | 1983 | 105.17384202745 | 1982 | 110.90056335577 | 1981 | 101.89398615485 | 1980 | 107.05488304224 | 1979 | 112.94852436101 | 1978 | 112.51579895927 | 1977 | 115.99849639109 | 1976 | 113.79059179707 | 1975 | 98.762951894952 | 1974 | 100.18990345608 | 1973 | 94.933630719949 | 1972 | 81.596140470819 | 1971 | 69.379355042556 | 1970 | 69.55450690777 | 1969 | 70.025937690307 | 1968 | 65.209817133586 | 1967 | 68.021826741436 | 1966 | 70.842070818075 |
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