Year | Value | 2022 | 69,062 | 2021 | 67,339 | 2020 | 65,617 | 2019 | 63,628 | 2018 | 60,547 | 2017 | 57,189 | 2016 | 54,070 | 2015 | 50,846 | 2014 | 47,092 | 2013 | 43,472 | 2012 | 40,044 | 2011 | 36,907 | 2010 | 34,109 | 2009 | 31,758 | 2008 | 29,849 | 2007 | 28,310 | 2006 | 27,081 | 2005 | 26,054 | 2004 | 25,227 | 2003 | 24,785 | 2002 | 24,804 | 2001 | 25,353 | 2000 | 26,440 | 1999 | 27,629 | 1998 | 28,291 | 1997 | 28,252 | 1996 | 27,598 | 1995 | 26,522 | 1994 | 25,570 | 1993 | 25,098 | 1992 | 25,010 | 1991 | 25,065 | 1990 | 25,018 | 1989 | 24,694 | 1988 | 24,078 | 1987 | 23,254 | 1986 | 22,396 | 1985 | 21,741 | 1984 | 21,327 | 1983 | 21,116 | 1982 | 21,134 | 1981 | 21,262 | 1980 | 21,401 | 1979 | 21,545 | 1978 | 21,548 | 1977 | 21,307 | 1976 | 20,892 | 1975 | 20,374 | 1974 | 19,861 | 1973 | 19,511 | 1972 | 19,383 | 1971 | 19,441 | 1970 | 19,678 | 1969 | 20,037 | 1968 | 20,308 | 1967 | 20,330 | 1966 | 20,127 | 1965 | 19,852 | 1964 | 19,698 | 1963 | 19,691 | 1962 | 19,536 | 1961 | 19,093 | 1960 | 18,497 |
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