Year | Value | 2022 | 13,273 | 2021 | 12,646 | 2020 | 13,866 | 2019 | 16,722 | 2018 | 20,497 | 2017 | 24,200 | 2016 | 26,744 | 2015 | 27,766 | 2014 | 27,555 | 2013 | 26,608 | 2012 | 25,467 | 2011 | 24,628 | 2010 | 24,450 | 2009 | 25,176 | 2008 | 26,504 | 2007 | 27,655 | 2006 | 28,254 | 2005 | 28,093 | 2004 | 27,034 | 2003 | 25,106 | 2002 | 22,311 | 2001 | 19,013 | 2000 | 15,840 | 1999 | 13,091 | 1998 | 10,923 | 1997 | 9,531 | 1996 | 8,780 | 1995 | 8,520 | 1994 | 8,769 | 1993 | 9,412 | 1992 | 10,389 | 1991 | 11,645 | 1990 | 12,853 | 1989 | 13,649 | 1988 | 14,289 | 1987 | 14,739 | 1986 | 14,752 | 1985 | 14,522 | 1984 | 14,144 | 1983 | 13,713 | 1982 | 13,232 | 1981 | 12,685 | 1980 | 12,076 | 1979 | 11,419 | 1978 | 10,729 | 1977 | 10,039 | 1976 | 9,394 | 1975 | 8,824 | 1974 | 8,348 | 1973 | 7,980 | 1972 | 7,749 | 1971 | 7,697 | 1970 | 7,872 | 1969 | 8,293 | 1968 | 8,975 | 1967 | 9,801 | 1966 | 10,539 | 1965 | 11,033 | 1964 | 11,263 | 1963 | 11,186 | 1962 | 10,837 | 1961 | 10,431 | 1960 | 10,134 |
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