Year | Value | 2021 | 1,238 | 2020 | 3,051 | 2019 | 7,423 | 2018 | 7,930 | 2017 | 20,590 | 2016 | 22,464 | 2015 | 22,350 | 2014 | 14,136 | 2013 | 19,416 | 2012 | 8,201 | 2011 | 2,808 | 2010 | 717.17092337917 | 1998 | 600 | 1997 | 600 | 1996 | 400 | 1995 | 400 | 1994 | 400 | 1993 | 400 | 1992 | 400 | 1991 | 400 | 1990 | 400 | 1989 | 400 | 1988 | 1,400 | 1987 | 400 | 1986 | 400 | 1985 | 400 | 1984 | 400 | 1983 | 400 | 1982 | 400 | 1981 | 400 | 1980 | 400 | 1979 | 400 | 1978 | 400 | 1977 | 400 | 1976 | 400 | 1975 | 400 | 1974 | 400 | 1973 | 400 | 1972 | 300 | 1971 | 300 |
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