| Year | Value | | 2022 | 236,245 | | 2021 | 230,124 | | 2020 | 224,615 | | 2019 | 219,063 | | 2018 | 213,294 | | 2017 | 207,022 | | 2016 | 200,052 | | 2015 | 192,450 | | 2014 | 184,239 | | 2013 | 175,551 | | 2012 | 166,829 | | 2011 | 158,551 | | 2010 | 151,033 | | 2009 | 144,504 | | 2008 | 139,349 | | 2007 | 135,330 | | 2006 | 132,000 | | 2005 | 129,465 | | 2004 | 129,730 | | 2003 | 132,090 | | 2002 | 135,459 | | 2001 | 140,400 | | 2000 | 145,548 | | 1999 | 148,051 | | 1998 | 149,040 | | 1997 | 149,841 | | 1996 | 148,941 | | 1995 | 147,390 | | 1994 | 148,214 | | 1993 | 150,137 | | 1992 | 148,219 | | 1991 | 144,023 | | 1990 | 139,388 | | 1989 | 133,444 | | 1988 | 126,504 | | 1987 | 121,081 | | 1986 | 117,342 | | 1985 | 113,717 | | 1984 | 110,274 | | 1983 | 106,976 | | 1982 | 103,845 | | 1981 | 100,810 | | 1980 | 97,825 | | 1979 | 94,904 | | 1978 | 91,973 | | 1977 | 89,029 | | 1976 | 86,453 | | 1975 | 84,586 | | 1974 | 83,329 | | 1973 | 82,627 | | 1972 | 82,193 | | 1971 | 81,393 | | 1970 | 79,812 | | 1969 | 77,534 | | 1968 | 74,642 | | 1967 | 71,148 | | 1966 | 67,460 | | 1965 | 63,907 | | 1964 | 60,408 | | 1963 | 56,828 | | 1962 | 53,454 | | 1961 | 50,667 | | 1960 | 48,741 |
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