Year | Value | 2022 | 69.577571036506 | 2021 | 74.803407695858 | 2020 | 84.686501468863 | 2019 | 75.894875913126 | 2018 | 72.565701472544 | 2017 | 70.920100707506 | 2016 | 69.174282646829 | 2015 | 77.637156165953 | 2014 | 71.563785780451 | 2013 | 77.63177337225 | 2012 | 77.831741200443 | 2011 | 68.852564703464 | 2010 | 73.549325913426 | 2009 | 80.118697392126 | 2008 | 69.024058236514 | 2007 | 62.544909434765 | 2006 | 61.038493585116 | 2005 | 57.507485408674 | 2004 | 60.318619959708 | 2003 | 60.585377319866 | 2002 | 59.754474662948 | 2001 | 57.941302130924 | 2000 | 58.224774727489 | 1999 | 60.118132279764 | 1998 | 66.982315747876 | 1997 | 63.634478769956 | 1996 | 61.555454889574 | 1995 | 69.485748272864 | 1994 | 66.860231228027 | 1993 | 63.338857306401 | 1992 | 62.972827764378 | 1991 | 60.289182322868 | 1990 | 57.369529305834 | 1989 | 50.803485929943 | 1988 | 49.823193680467 | 1987 | 57.811789665101 | 1986 | 59.312545378119 | 1985 | 61.946297649638 | 1984 | 67.707395797772 | 1983 | 71.093051289031 | 1982 | 77.053729486627 | 1981 | 78.41958820256 | 1980 | 73.330907767873 | 1979 | 73.907512720742 | 1978 | 80.100214745884 | 1977 | 84.944115713347 | 1976 | 82.163833075734 | 1975 | 78.29811536265 | 1974 | 75.979802837221 | 1973 | 72.233697255828 | 1972 | 72.226593233674 | 1971 | 77.973568281938 | 1970 | 90.935460478608 | 1969 | 91.539153915391 | 1968 | 109.15789473684 | 1967 | 100.71344486855 | 1966 | 99.864498644986 | 1965 | 105.64024390244 | 1964 | 107.52201864675 | 1963 | 109.64744224967 | 1962 | 109.61167072446 | 1961 | 109.97478237573 | 1960 | 110.03406613163 |
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