Year | Value | 2022 | 71,497 | 2021 | 70,771 | 2020 | 69,997 | 2019 | 69,465 | 2018 | 69,287 | 2017 | 69,329 | 2016 | 69,562 | 2015 | 70,114 | 2014 | 70,763 | 2013 | 71,143 | 2012 | 71,321 | 2011 | 71,618 | 2010 | 72,018 | 2009 | 72,335 | 2008 | 72,545 | 2007 | 72,602 | 2006 | 72,326 | 2005 | 71,704 | 2004 | 71,033 | 2003 | 70,530 | 2002 | 70,052 | 2001 | 70,635 | 2000 | 70,560 | 1999 | 69,850 | 1998 | 68,497 | 1997 | 66,634 | 1996 | 64,802 | 1995 | 62,501 | 1994 | 60,425 | 1993 | 59,032 | 1992 | 58,086 | 1991 | 56,506 | 1990 | 54,547 | 1989 | 53,243 | 1988 | 52,446 | 1987 | 52,137 | 1986 | 52,204 | 1985 | 52,458 | 1984 | 52,767 | 1983 | 52,970 | 1982 | 52,898 | 1981 | 52,580 | 1980 | 52,095 | 1979 | 51,470 | 1978 | 50,774 | 1977 | 50,063 | 1976 | 49,326 | 1975 | 48,497 | 1974 | 47,498 | 1973 | 46,252 | 1972 | 44,704 | 1971 | 42,847 | 1970 | 40,760 | 1969 | 38,531 | 1968 | 36,205 | 1967 | 33,859 | 1966 | 31,646 | 1965 | 29,779 | 1964 | 28,484 | 1963 | 27,978 | 1962 | 28,269 | 1961 | 29,349 | 1960 | 30,960 |
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