Year | Value | 2021 | 254.45727 | 2020 | 51.918137 | 2019 | 566.923 | 2018 | 510.425983 | 2017 | 434.92173 | 2016 | 425.202175 | 2015 | 412.234008 | 2014 | 291.939 | 2013 | 251.141 | 2012 | 240.695 | 2011 | 171.732 | 2010 | 106.579 | 2009 | 39.196 | 2004 | 235.186 | 2003 | 189.972 | 2002 | 130.409 | 2001 | 143.092 | 2000 | 152.145 | 1999 | 126.4000015259 | 1998 | 110.3000030518 | 1997 | 99.5 | 1996 | 105.8000030518 | 1995 | 132.8000030518 | 1994 | 122.1999969482 | 1993 | 88.1999969482 | 1992 | 69.8000030518 | 1991 | 51.2000007629 | 1990 | 44.2999992371 | 1989 | 40 | 1988 | 33.9000015259 | 1987 | 31.5 | 1986 | 31.3999996185 | 1985 | 32.5999984741 | 1984 | 30.7000007629 | 1983 | 23.7999992371 | 1982 | 21.6000003815 | 1981 | 21.3999996185 | 1980 | 26.2000007629 | 1979 | 14 | 1978 | 9.6000003815 | 1977 | 8.1999998093 | 1976 | 6.8000001907 | 1975 | 4 | 1974 | 2.2000000477 |
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