Year | Value | 2021 | 299.58742 | 2020 | 113.06282 | 2019 | 320.95255461657 | 2018 | 295.0477603503 | 2017 | 275.512276845 | 2016 | 257.576935754 | 2015 | 233.104791944 | 2014 | 248.56658 | 2013 | 258.081012 | 2012 | 234.56854312917 | 2011 | 191.160655419 | 2010 | 279.990902805 | 2009 | 271.562 | 2008 | 295.183 | 2007 | 298.083 | 2006 | 301.219 | 2005 | 253.163 | 2004 | 193.459 | 2003 | 141.539 | 2002 | 118.382 | 2001 | 92.732 | 2000 | 77.045 | 1999 | 65.5999984741 | 1998 | 53.9000015259 | 1997 | 50.7999992371 | 1996 | 47.7999992371 | 1995 | 52.7999992371 | 1994 | 57.2000007629 | 1993 | 56.0999984741 | 1992 | 51 | 1991 | 39.2000007629 | 1990 | 52.2000007629 | 1989 | 47.7000007629 | 1988 | 55.2000007629 | 1987 | 54.2999992371 | 1986 | 39.2999992371 | 1985 | 30.3999996185 | 1984 | 31.5 | 1983 | 30.2999992371 | 1982 | 23.3999996185 | 1981 | 19.1000003815 | 1980 | 18 | 1979 | 18.5 | 1978 | 22.1000003815 | 1977 | 14.1999998093 | 1976 | 17.8999996185 | 1975 | 15.6999998093 | 1974 | 19 | 1973 | 17 | 1972 | 8.5 | 1971 | 9.1999998093 | 1970 | 9.3999996185 |
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