| Year | Value | | 2022 | 93,117 | | 2021 | 88,017 | | 2020 | 82,626 | | 2019 | 77,321 | | 2018 | 72,424 | | 2017 | 68,179 | | 2016 | 64,381 | | 2015 | 59,580 | | 2014 | 55,250 | | 2013 | 52,676 | | 2012 | 50,989 | | 2011 | 49,744 | | 2010 | 48,357 | | 2009 | 47,427 | | 2008 | 46,630 | | 2007 | 45,706 | | 2006 | 42,896 | | 2005 | 39,780 | | 2004 | 38,084 | | 2003 | 36,182 | | 2002 | 34,229 | | 2001 | 32,270 | | 2000 | 30,392 | | 1999 | 28,659 | | 1998 | 27,041 | | 1997 | 25,513 | | 1996 | 24,055 | | 1995 | 22,607 | | 1994 | 21,135 | | 1993 | 19,661 | | 1992 | 18,245 | | 1991 | 16,941 | | 1990 | 15,784 | | 1989 | 14,828 | | 1988 | 14,050 | | 1987 | 13,371 | | 1986 | 12,765 | | 1985 | 12,226 | | 1984 | 11,747 | | 1983 | 11,325 | | 1982 | 10,965 | | 1981 | 10,689 | | 1980 | 10,515 | | 1979 | 10,440 | | 1978 | 10,443 | | 1977 | 10,478 | | 1976 | 10,487 | | 1975 | 10,442 | | 1974 | 10,345 | | 1973 | 10,198 | | 1972 | 10,024 | | 1971 | 9,836 | | 1970 | 9,622 | | 1969 | 9,351 | | 1968 | 9,025 | | 1967 | 8,692 | | 1966 | 8,402 | | 1965 | 8,198 | | 1964 | 8,103 | | 1963 | 8,104 | | 1962 | 8,127 | | 1961 | 8,092 | | 1960 | 7,958 |
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