Year | Value | 2022 | 60,581 | 2021 | 58,669 | 2020 | 56,693 | 2019 | 54,647 | 2018 | 52,896 | 2017 | 51,497 | 2016 | 50,147 | 2015 | 48,438 | 2014 | 46,387 | 2013 | 44,253 | 2012 | 42,216 | 2011 | 40,424 | 2010 | 39,048 | 2009 | 38,008 | 2008 | 37,070 | 2007 | 36,224 | 2006 | 35,639 | 2005 | 35,419 | 2004 | 35,559 | 2003 | 35,946 | 2002 | 36,278 | 2001 | 36,240 | 2000 | 35,692 | 1999 | 34,618 | 1998 | 33,113 | 1997 | 31,365 | 1996 | 29,570 | 1995 | 27,842 | 1994 | 26,213 | 1993 | 24,717 | 1992 | 23,470 | 1991 | 22,595 | 1990 | 22,160 | 1989 | 22,176 | 1988 | 22,525 | 1987 | 22,940 | 1986 | 23,137 | 1985 | 22,954 | 1984 | 22,360 | 1983 | 21,446 | 1982 | 20,423 | 1981 | 19,390 | 1980 | 18,457 | 1979 | 17,734 | 1978 | 17,175 | 1977 | 16,713 | 1976 | 16,277 | 1975 | 15,833 | 1974 | 15,379 | 1973 | 14,849 | 1972 | 14,401 | 1971 | 14,069 | 1970 | 13,647 | 1969 | 13,139 | 1968 | 12,583 | 1967 | 12,056 | 1966 | 11,645 | 1965 | 11,408 | 1964 | 11,365 | 1963 | 11,480 | 1962 | 11,686 | 1961 | 11,847 | 1960 | 11,784 |
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