Year | Value | 2021 | 95,001 | 2020 | 72,839 | 2019 | 143,964 | 2018 | 134,661 | 2017 | 124,316 | 2016 | 116,238 | 2015 | 116,532 | 2014 | 124,480 | 2013 | 127,631 | 2012 | 125,120 | 2011 | 123,739 | 2010 | 108,840 | 2009 | 97,473 | 2008 | 108,565 | 2007 | 101,008 | 2006 | 94,770 | 2005 | 93,003 | 2004 | 86,140 | 2003 | 82,789 | 2002 | 78,187 | 2001 | 82,942 | 2000 | 87,945 | 1999 | 92,500 | 1998 | 119,100 | 1997 | 109,300 | 1996 | 93,700 | 1995 | 77,800 | 1994 | 68,800 | 1993 | 58,600 | 1992 | 48,200 | 1991 | 36,600 | 1990 | 40,100 | 1989 | 36,000 | 1988 | 35,300 | 1987 | 29,000 | 1986 | 26,300 | 1985 | 25,300 | 1984 | 20,100 | 1983 | 19,200 | 1982 | 20,700 | 1981 | 18,300 | 1980 | 13,700 | 1979 | 12,500 | 1978 | 14,100 | 1977 | 14,800 | 1976 | 14,300 | 1975 | 16,600 | 1974 | 21,500 | 1973 | 21,200 | 1972 | 24,800 | 1971 | 27,000 | 1970 | 24,900 |
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