Year | Value | 2022 | 62,716 | 2021 | 61,274 | 2020 | 59,760 | 2019 | 57,758 | 2018 | 56,238 | 2017 | 56,432 | 2016 | 58,528 | 2015 | 61,890 | 2014 | 65,514 | 2013 | 68,780 | 2012 | 71,129 | 2011 | 72,066 | 2010 | 72,124 | 2009 | 71,389 | 2008 | 69,616 | 2007 | 67,515 | 2006 | 65,841 | 2005 | 65,123 | 2004 | 65,482 | 2003 | 66,586 | 2002 | 67,857 | 2001 | 69,144 | 2000 | 70,228 | 1999 | 70,491 | 1998 | 69,949 | 1997 | 68,702 | 1996 | 66,410 | 1995 | 63,145 | 1994 | 59,487 | 1993 | 55,552 | 1992 | 51,509 | 1991 | 47,926 | 1990 | 45,999 | 1989 | 46,296 | 1988 | 48,244 | 1987 | 51,454 | 1986 | 55,232 | 1985 | 58,415 | 1984 | 60,267 | 1983 | 60,904 | 1982 | 60,809 | 1981 | 60,489 | 1980 | 60,302 | 1979 | 60,180 | 1978 | 59,938 | 1977 | 59,575 | 1976 | 59,095 | 1975 | 58,461 | 1974 | 57,600 | 1973 | 56,451 | 1972 | 55,067 | 1971 | 53,552 | 1970 | 52,028 | 1969 | 50,491 | 1968 | 48,958 | 1967 | 47,543 | 1966 | 46,407 | 1965 | 45,527 | 1964 | 44,718 | 1963 | 44,067 | 1962 | 43,613 | 1961 | 42,995 | 1960 | 41,987 |
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