Year | Value | 2021 | 215.00546 | 2020 | 140.556639 | 2019 | 317.866 | 2018 | 271.488 | 2017 | 221.814 | 2016 | 155.552044 | 2015 | 114.791591876 | 2014 | 120.85182858 | 2013 | 97.64576278 | 2012 | 91.831162781705 | 2011 | 39.418003867956 | 2010 | 76.606040095 | 2009 | 55.475 | 2008 | 78.921 | 2007 | 83.145 | 2006 | 79.824 | 2005 | 71.284 | 2004 | 77.109 | 2003 | 70.898 | 2002 | 66.715 | 2001 | 68.514 | 2000 | 77.827 | 1999 | 80.3000030518 | 1998 | 91.8000030518 | 1997 | 92 | 1996 | 70 | 1995 | 66.1999969482 | 1994 | 54.7999992371 | 1993 | 49.2999992371 | 1992 | 42.7999992371 | 1991 | 38.0999984741 | 1990 | 48.9000015259 | 1989 | 28.7999992371 | 1988 | 13.5 | 1987 | 10.3000001907 | 1986 | 9.5 | 1985 | 7.9000000954 | 1984 | 6.5 | 1983 | 4.9000000954 | 1982 | 4.1999998093 | 1981 | 12.8000001907 | 1980 | 13.8000001907 | 1979 | 14.1000003815 | 1978 | 14.3999996185 | 1977 | 11.8000001907 | 1976 | 10.6000003815 | 1975 | 10.1999998093 | 1974 | 10.3000001907 | 1973 | 9.5 | 1972 | 7.5999999046 | 1971 | 6.5 | 1970 | 6.1999998093 |
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