| Year | Value | | 2022 | 91,520 | | 2021 | 91,129 | | 2020 | 90,948 | | 2019 | 91,023 | | 2018 | 90,793 | | 2017 | 89,370 | | 2016 | 87,181 | | 2015 | 84,711 | | 2014 | 82,224 | | 2013 | 80,056 | | 2012 | 78,302 | | 2011 | 76,753 | | 2010 | 75,335 | | 2009 | 73,993 | | 2008 | 72,639 | | 2007 | 71,248 | | 2006 | 69,946 | | 2005 | 68,792 | | 2004 | 67,698 | | 2003 | 66,611 | | 2002 | 65,558 | | 2001 | 64,562 | | 2000 | 63,620 | | 1999 | 62,696 | | 1998 | 61,755 | | 1997 | 60,782 | | 1996 | 59,791 | | 1995 | 58,784 | | 1994 | 57,753 | | 1993 | 56,690 | | 1992 | 55,614 | | 1991 | 54,525 | | 1990 | 53,400 | | 1989 | 52,255 | | 1988 | 51,119 | | 1987 | 49,974 | | 1986 | 48,832 | | 1985 | 47,709 | | 1984 | 46,603 | | 1983 | 45,572 | | 1982 | 44,765 | | 1981 | 43,891 | | 1980 | 42,729 | | 1979 | 41,634 | | 1978 | 40,647 | | 1977 | 39,681 | | 1976 | 38,754 | | 1975 | 37,813 | | 1974 | 36,861 | | 1973 | 35,932 | | 1972 | 35,025 | | 1971 | 34,139 | | 1970 | 33,270 | | 1969 | 32,411 | | 1968 | 31,561 | | 1967 | 30,722 | | 1966 | 29,892 | | 1965 | 29,073 | | 1964 | 28,268 | | 1963 | 27,478 | | 1962 | 26,702 | | 1961 | 26,168 | | 1960 | 25,874 |
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