| Year | Value | | 2022 | 75,793 | | 2021 | 68,127 | | 2020 | 61,767 | | 2019 | 55,336 | | 2018 | 47,136 | | 2017 | 38,638 | | 2016 | 32,892 | | 2015 | 27,539 | | 2014 | 22,503 | | 2013 | 19,330 | | 2012 | 16,261 | | 2011 | 13,862 | | 2010 | 12,579 | | 2009 | 12,052 | | 2008 | 11,347 | | 2007 | 10,473 | | 2006 | 9,466 | | 2005 | 8,621 | | 2004 | 8,413 | | 2003 | 8,560 | | 2002 | 8,529 | | 2001 | 8,266 | | 2000 | 7,786 | | 1999 | 7,162 | | 1998 | 6,488 | | 1997 | 5,838 | | 1996 | 5,259 | | 1995 | 5,247 | | 1994 | 6,626 | | 1993 | 8,516 | | 1992 | 8,707 | | 1991 | 6,729 | | 1990 | 7,261 | | 1989 | 8,553 | | 1988 | 7,332 | | 1987 | 6,238 | | 1986 | 5,297 | | 1985 | 4,806 | | 1984 | 4,652 | | 1983 | 4,607 | | 1982 | 4,674 | | 1981 | 4,688 | | 1980 | 4,554 | | 1979 | 4,315 | | 1978 | 4,055 | | 1977 | 3,784 | | 1976 | 3,567 | | 1975 | 3,350 | | 1974 | 3,134 | | 1973 | 3,031 | | 1972 | 3,018 | | 1971 | 3,026 | | 1970 | 2,984 | | 1969 | 2,882 | | 1968 | 2,756 | | 1967 | 2,605 | | 1966 | 2,446 | | 1965 | 2,308 | | 1964 | 2,186 | | 1963 | 2,048 | | 1962 | 1,900 | | 1961 | 1,729 | | 1960 | 1,558 |
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