Year | Value | 2022 | 60,989 | 2021 | 59,297 | 2020 | 58,105 | 2019 | 56,576 | 2018 | 54,810 | 2017 | 52,888 | 2016 | 51,074 | 2015 | 49,715 | 2014 | 48,629 | 2013 | 47,737 | 2012 | 46,374 | 2011 | 44,534 | 2010 | 42,715 | 2009 | 40,902 | 2008 | 38,922 | 2007 | 37,014 | 2006 | 35,256 | 2005 | 33,609 | 2004 | 32,144 | 2003 | 30,716 | 2002 | 29,454 | 2001 | 28,474 | 2000 | 28,092 | 1999 | 28,060 | 1998 | 28,181 | 1997 | 28,983 | 1996 | 30,062 | 1995 | 30,864 | 1994 | 31,186 | 1993 | 31,301 | 1992 | 31,276 | 1991 | 31,028 | 1990 | 30,601 | 1989 | 30,004 | 1988 | 29,616 | 1987 | 29,277 | 1986 | 28,721 | 1985 | 28,284 | 1984 | 27,966 | 1983 | 27,412 | 1982 | 26,638 | 1981 | 25,880 | 1980 | 25,141 | 1979 | 24,531 | 1978 | 24,084 | 1977 | 23,603 | 1976 | 23,230 | 1975 | 22,872 | 1974 | 22,405 | 1973 | 21,907 | 1972 | 21,306 | 1971 | 20,591 | 1970 | 19,962 | 1969 | 19,515 | 1968 | 18,994 | 1967 | 18,391 | 1966 | 17,808 | 1965 | 17,157 | 1964 | 16,419 | 1963 | 15,687 | 1962 | 15,210 | 1961 | 14,896 | 1960 | 14,517 |
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