| Year | Value | | 2022 | 154,963 | | 2021 | 146,849 | | 2020 | 139,736 | | 2019 | 133,016 | | 2018 | 126,519 | | 2017 | 121,690 | | 2016 | 118,624 | | 2015 | 116,980 | | 2014 | 115,552 | | 2013 | 113,497 | | 2012 | 111,439 | | 2011 | 109,844 | | 2010 | 108,613 | | 2009 | 106,251 | | 2008 | 103,565 | | 2007 | 101,822 | | 2006 | 100,461 | | 2005 | 99,202 | | 2004 | 95,640 | | 2003 | 90,397 | | 2002 | 86,024 | | 2001 | 81,741 | | 2000 | 77,560 | | 1999 | 75,891 | | 1998 | 75,572 | | 1997 | 74,929 | | 1996 | 75,520 | | 1995 | 75,856 | | 1994 | 72,079 | | 1993 | 72,006 | | 1992 | 74,516 | | 1991 | 73,067 | | 1990 | 71,963 | | 1989 | 70,801 | | 1988 | 69,721 | | 1987 | 68,524 | | 1986 | 67,366 | | 1985 | 66,554 | | 1984 | 65,678 | | 1983 | 64,734 | | 1982 | 63,742 | | 1981 | 62,972 | | 1980 | 61,521 | | 1979 | 60,142 | | 1978 | 59,664 | | 1977 | 59,015 | | 1976 | 58,517 | | 1975 | 58,152 | | 1974 | 57,644 | | 1973 | 57,124 | | 1972 | 57,839 | | 1971 | 58,379 | | 1970 | 57,644 | | 1969 | 56,952 | | 1968 | 56,194 | | 1967 | 55,300 | | 1966 | 54,341 | | 1965 | 53,447 | | 1964 | 52,430 | | 1963 | 51,399 | | 1962 | 50,632 | | 1961 | 49,699 | | 1960 | 48,733 |
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