| Year | Value | | 2022 | 64,110 | | 2021 | 63,047 | | 2020 | 61,424 | | 2019 | 59,125 | | 2018 | 56,778 | | 2017 | 54,455 | | 2016 | 52,169 | | 2015 | 49,972 | | 2014 | 48,015 | | 2013 | 46,019 | | 2012 | 43,917 | | 2011 | 41,814 | | 2010 | 39,805 | | 2009 | 37,882 | | 2008 | 35,947 | | 2007 | 34,075 | | 2006 | 32,241 | | 2005 | 30,492 | | 2004 | 28,882 | | 2003 | 27,410 | | 2002 | 26,043 | | 2001 | 24,805 | | 2000 | 23,655 | | 1999 | 22,556 | | 1998 | 21,609 | | 1997 | 20,701 | | 1996 | 19,785 | | 1995 | 18,901 | | 1994 | 18,005 | | 1993 | 17,083 | | 1992 | 16,140 | | 1991 | 15,223 | | 1990 | 14,317 | | 1989 | 13,409 | | 1988 | 12,537 | | 1987 | 11,723 | | 1986 | 10,952 | | 1985 | 10,216 | | 1984 | 9,519 | | 1983 | 8,850 | | 1982 | 8,208 | | 1981 | 7,644 | | 1980 | 7,155 | | 1979 | 6,702 | | 1978 | 6,273 | | 1977 | 5,869 | | 1976 | 5,516 | | 1975 | 5,210 | | 1974 | 4,935 | | 1973 | 4,691 | | 1972 | 4,488 | | 1971 | 4,309 | | 1970 | 4,143 | | 1969 | 3,982 | | 1968 | 3,813 | | 1967 | 3,646 | | 1966 | 3,480 | | 1965 | 3,307 | | 1964 | 3,134 | | 1963 | 2,976 | | 1962 | 2,826 | | 1961 | 2,679 | | 1960 | 2,536 |
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