Year | Value | 2022 | 36,055 | 2021 | 36,568 | 2020 | 36,885 | 2019 | 37,079 | 2018 | 37,277 | 2017 | 37,615 | 2016 | 38,164 | 2015 | 38,949 | 2014 | 39,937 | 2013 | 41,019 | 2012 | 42,015 | 2011 | 42,694 | 2010 | 42,988 | 2009 | 42,939 | 2008 | 42,545 | 2007 | 41,923 | 2006 | 41,379 | 2005 | 40,995 | 2004 | 40,393 | 2003 | 39,383 | 2002 | 38,014 | 2001 | 36,277 | 2000 | 34,267 | 1999 | 32,101 | 1998 | 30,538 | 1997 | 29,688 | 1996 | 28,886 | 1995 | 28,052 | 1994 | 27,412 | 1993 | 27,087 | 1992 | 28,080 | 1991 | 28,923 | 1990 | 28,226 | 1989 | 27,306 | 1988 | 26,347 | 1987 | 25,402 | 1986 | 24,474 | 1985 | 23,572 | 1984 | 22,689 | 1983 | 21,830 | 1982 | 21,004 | 1981 | 20,211 | 1980 | 19,446 | 1979 | 18,711 | 1978 | 18,009 | 1977 | 17,347 | 1976 | 16,725 | 1975 | 16,138 | 1974 | 15,585 | 1973 | 15,058 | 1972 | 14,552 | 1971 | 14,065 | 1970 | 13,601 | 1969 | 13,308 | 1968 | 13,185 | 1967 | 13,188 | 1966 | 13,321 | 1965 | 13,469 | 1964 | 13,455 | 1963 | 13,280 | 1962 | 12,989 | 1961 | 12,590 | 1960 | 12,210 |
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