| Year | Value | | 2024 | 71,030 | | 2023 | 69,543 | | 2022 | 77,277 | | 2021 | 77,524 | | 2020 | 89,503 | | 2019 | 86,318 | | 2018 | 85,445 | | 2017 | 85,337 | | 2016 | 82,684 | | 2015 | 76,867 | | 2014 | 71,482 | | 2013 | 67,251 | | 2012 | 61,746 | | 2011 | 57,303 | | 2010 | 56,039 | | 2009 | 52,973 | | 2008 | 44,244 | | 2007 | 35,412 | | 2006 | 27,129 | | 2005 | 24,760 | | 2004 | 24,511 | | 2003 | 23,325 | | 2002 | 22,320 | | 2001 | 20,902 | | 2000 | 19,172 | | 1999 | 17,300 | | 1998 | 15,525 | | 1997 | 14,242 | | 1996 | 14,063 | | 1995 | 14,564 | | 1994 | 14,926 | | 1993 | 15,060 | | 1992 | 14,908 | | 1991 | 14,475 | | 1990 | 13,834 | | 1989 | 13,096 | | 1988 | 12,378 | | 1987 | 11,761 | | 1986 | 11,305 | | 1985 | 10,991 | | 1984 | 10,665 | | 1983 | 10,224 | | 1982 | 9,696 | | 1981 | 9,122 | | 1980 | 8,525 | | 1979 | 7,914 | | 1978 | 7,309 | | 1977 | 6,739 | | 1976 | 6,229 | | 1975 | 5,797 |
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