Year | Value | 2022 | 53,356 | 2021 | 52,562 | 2020 | 51,483 | 2019 | 50,238 | 2018 | 49,026 | 2017 | 47,904 | 2016 | 46,791 | 2015 | 45,613 | 2014 | 44,319 | 2013 | 42,886 | 2012 | 41,377 | 2011 | 39,942 | 2010 | 39,257 | 2009 | 38,657 | 2008 | 37,525 | 2007 | 36,507 | 2006 | 35,595 | 2005 | 34,796 | 2004 | 34,188 | 2003 | 33,736 | 2002 | 33,352 | 2001 | 33,019 | 2000 | 32,669 | 1999 | 32,302 | 1998 | 31,948 | 1997 | 31,612 | 1996 | 31,279 | 1995 | 30,951 | 1994 | 30,648 | 1993 | 30,345 | 1992 | 30,026 | 1991 | 29,693 | 1990 | 29,355 | 1989 | 28,998 | 1988 | 28,599 | 1987 | 28,171 | 1986 | 27,721 | 1985 | 27,246 | 1984 | 26,757 | 1983 | 26,250 | 1982 | 25,700 | 1981 | 25,085 | 1980 | 24,397 | 1979 | 23,630 | 1978 | 22,781 | 1977 | 21,867 | 1976 | 20,923 | 1975 | 19,972 | 1974 | 19,011 | 1973 | 18,030 | 1972 | 17,068 | 1971 | 16,201 | 1970 | 15,474 | 1969 | 14,904 | 1968 | 14,525 | 1967 | 14,300 | 1966 | 14,109 | 1965 | 13,878 | 1964 | 13,610 | 1963 | 13,320 | 1962 | 12,993 | 1961 | 12,686 | 1960 | 12,499 |
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