Year | Value | 2022 | 54,565 | 2021 | 52,046 | 2020 | 49,496 | 2019 | 46,857 | 2018 | 44,147 | 2017 | 41,515 | 2016 | 39,170 | 2015 | 37,144 | 2014 | 35,457 | 2013 | 34,135 | 2012 | 32,998 | 2011 | 31,774 | 2010 | 30,460 | 2009 | 28,956 | 2008 | 27,553 | 2007 | 26,504 | 2006 | 25,626 | 2005 | 24,973 | 2004 | 24,535 | 2003 | 24,269 | 2002 | 24,166 | 2001 | 24,007 | 2000 | 23,389 | 1999 | 22,674 | 1998 | 22,113 | 1997 | 21,650 | 1996 | 21,252 | 1995 | 20,860 | 1994 | 20,593 | 1993 | 20,378 | 1992 | 20,169 | 1991 | 19,849 | 1990 | 19,336 | 1989 | 18,676 | 1988 | 17,995 | 1987 | 17,451 | 1986 | 17,170 | 1985 | 17,201 | 1984 | 17,496 | 1983 | 17,790 | 1982 | 17,757 | 1981 | 17,377 | 1980 | 16,794 | 1979 | 16,149 | 1978 | 15,550 | 1977 | 15,077 | 1976 | 14,728 | 1975 | 14,441 | 1974 | 14,172 | 1973 | 13,911 | 1972 | 13,657 | 1971 | 13,410 | 1970 | 13,170 | 1969 | 12,935 | 1968 | 12,706 | 1967 | 12,483 | 1966 | 12,276 | 1965 | 12,089 | 1964 | 11,920 | 1963 | 11,773 | 1962 | 11,633 | 1961 | 11,449 | 1960 | 11,190 |
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