| Year | Value | | 2024 | 65,548 | | 2023 | 58,167 | | 2022 | 52,897 | | 2021 | 47,640 | | 2020 | 52,549 | | 2019 | 48,825 | | 2018 | 49,689 | | 2017 | 52,604 | | 2016 | 52,479 | | 2015 | 47,968 | | 2014 | 41,866 | | 2013 | 36,689 | | 2012 | 32,350 | | 2011 | 29,300 | | 2010 | 28,069 | | 2009 | 26,845 | | 2008 | 23,395 | | 2007 | 21,263 | | 2006 | 19,433 | | 2005 | 17,475 | | 2004 | 16,104 | | 2003 | 14,777 | | 2002 | 13,129 | | 2001 | 11,708 | | 2000 | 10,498 | | 1999 | 9,478 | | 1998 | 8,629 | | 1997 | 7,966 | | 1996 | 7,572 | | 1995 | 7,360 | | 1994 | 7,154 | | 1993 | 6,916 | | 1992 | 6,623 | | 1991 | 6,263 | | 1990 | 5,857 | | 1989 | 5,449 | | 1988 | 5,050 | | 1987 | 4,662 | | 1986 | 4,272 | | 1985 | 3,840 | | 1984 | 3,421 | | 1983 | 3,073 | | 1982 | 2,776 | | 1981 | 2,530 | | 1980 | 2,329 | | 1979 | 2,164 | | 1978 | 2,022 | | 1977 | 1,900 | | 1976 | 1,794 | | 1975 | 1,704 |
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