Year | Value | 2021 | 117,353 | 2020 | 212,297 | 2019 | 332,029 | 2018 | 283,787 | 2017 | 264,548 | 2016 | 248,580 | 2015 | 205,217 | 2014 | 167,386.363 | 2013 | 149,527.817 | 2012 | 135,300.41408858 | 2011 | 135,905.67293654 | 2010 | 109,176 | 2009 | 83,720 | 2008 | 74,739 | 2007 | 60,218 | 2006 | 50,840 | 2005 | 54,415 | 2004 | 50,855 | 2003 | 41,996 | 2002 | 42,588 | 2001 | 35,658 | 2000 | 28,999 | 1999 | 29,000 | 1998 | 29,700 | 1997 | 33,500 | 1996 | 27,800 | 1995 | 27,100 | 1994 | 21,200 | 1993 | 16,800 | 1992 | 3,700 | 1991 | 3,700 | 1990 | 1,800 | 1989 | 1,800 | 1988 | 1,800 | 1987 | 1,800 | 1986 | 1,800 | 1985 | 1,800 | 1984 | 1,600 | 1983 | 1,600 | 1982 | 600 | 1981 | 600 | 1980 | 200 | 1975 | 4,500 | 1974 | 16,000 | 1973 | 18,200 | 1972 | 20,300 | 1971 | 24,100 | 1970 | 39,600 |
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