Year | Value | 2022 | 56,462 | 2021 | 53,888 | 2020 | 51,553 | 2019 | 49,322 | 2018 | 47,759 | 2017 | 46,471 | 2016 | 45,060 | 2015 | 43,613 | 2014 | 42,418 | 2013 | 40,839 | 2012 | 38,686 | 2011 | 36,391 | 2010 | 33,922 | 2009 | 31,729 | 2008 | 30,037 | 2007 | 28,526 | 2006 | 27,285 | 2005 | 26,311 | 2004 | 25,450 | 2003 | 24,724 | 2002 | 24,203 | 2001 | 23,754 | 2000 | 23,302 | 1999 | 22,820 | 1998 | 22,300 | 1997 | 21,749 | 1996 | 21,170 | 1995 | 20,579 | 1994 | 20,010 | 1993 | 19,517 | 1992 | 19,100 | 1991 | 18,722 | 1990 | 18,352 | 1989 | 17,967 | 1988 | 17,559 | 1987 | 17,140 | 1986 | 16,738 | 1985 | 16,375 | 1984 | 15,868 | 1983 | 15,213 | 1982 | 14,604 | 1981 | 14,052 | 1980 | 13,560 | 1979 | 13,116 | 1978 | 12,707 | 1977 | 12,333 | 1976 | 11,995 | 1975 | 11,694 | 1974 | 11,415 | 1973 | 11,184 | 1972 | 11,004 | 1971 | 10,833 | 1970 | 10,669 | 1969 | 10,513 | 1968 | 10,365 | 1967 | 10,223 | 1966 | 10,078 | 1965 | 9,924 | 1964 | 9,762 | 1963 | 9,592 | 1962 | 9,417 | 1961 | 9,243 | 1960 | 9,076 |
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