Year | Value | 2021 | 589.483009 | 2020 | 438.908903264 | 2019 | 483.4138791 | 2018 | 437.625328 | 2017 | 403.828739 | 2016 | 374.357162291 | 2015 | 377.360014527 | 2014 | 418.69160742532 | 2013 | 386.68347463905 | 2012 | 356.26545382702 | 2011 | 333.306675121 | 2010 | 416.98509869737 | 2009 | 180.31 | 2008 | 195.482 | 2007 | 206.828 | 2006 | 309.434 | 2005 | 286.954 | 2004 | 241.872 | 2003 | 238.885 | 2002 | 249.206 | 2001 | 239.036 | 2000 | 278.061 | 1999 | 269.5 | 1998 | 255.1000061035 | 1997 | 208.6000061035 | 1996 | 198 | 1995 | 164.1000061035 | 1994 | 185.1999969482 | 1993 | 122.8000030518 | 1992 | 109.1999969482 | 1991 | 128.1999969482 | 1990 | 144 | 1989 | 138.1000061035 | 1988 | 118.8000030518 | 1987 | 112 | 1986 | 111.5 | 1985 | 98.5 | 1984 | 88.1999969482 | 1983 | 69.6999969482 | 1982 | 53.5 | 1981 | 39 | 1980 | 29.3999996185 | 1979 | 28 | 1978 | 24.7000007629 | 1977 | 23.7000007629 | 1976 | 20.7000007629 | 1975 | 20.7000007629 | 1974 | 17.1000003815 | 1973 | 13.8999996185 | 1972 | 17.7999992371 | 1971 | 17.3999996185 | 1970 | 15.3000001907 |
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