Year | Value | 2022 | 59,277 | 2021 | 59,002 | 2020 | 58,717 | 2019 | 58,424 | 2018 | 58,151 | 2017 | 57,922 | 2016 | 57,735 | 2015 | 57,613 | 2014 | 57,573 | 2013 | 57,594 | 2012 | 57,691 | 2011 | 57,894 | 2010 | 58,195 | 2009 | 58,549 | 2008 | 59,019 | 2007 | 59,529 | 2006 | 59,792 | 2005 | 59,745 | 2004 | 59,362 | 2003 | 58,522 | 2002 | 57,161 | 2001 | 55,624 | 2000 | 54,341 | 1999 | 53,348 | 1998 | 52,554 | 1997 | 51,880 | 1996 | 51,334 | 1995 | 50,978 | 1994 | 51,164 | 1993 | 50,712 | 1992 | 52,217 | 1991 | 53,083 | 1990 | 49,057 | 1989 | 44,544 | 1988 | 41,468 | 1987 | 39,110 | 1986 | 36,911 | 1985 | 35,097 | 1984 | 33,720 | 1983 | 32,689 | 1982 | 31,800 | 1981 | 30,783 | 1980 | 29,426 | 1979 | 27,656 | 1978 | 25,557 | 1977 | 23,341 | 1976 | 21,234 | 1975 | 19,370 | 1974 | 17,798 | 1973 | 16,494 | 1972 | 15,351 | 1971 | 14,299 | 1970 | 13,351 | 1969 | 12,479 | 1968 | 11,726 | 1967 | 11,087 | 1966 | 10,468 | 1965 | 9,869 | 1964 | 9,300 | 1963 | 8,785 | 1962 | 8,337 | 1961 | 7,954 | 1960 | 7,621 |
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