| Year | Value | | 2022 | 80,063 | | 2021 | 70,399 | | 2020 | 74,863 | | 2019 | 80,519 | | 2018 | 88,125 | | 2017 | 96,462 | | 2016 | 104,308 | | 2015 | 111,016 | | 2014 | 116,939 | | 2013 | 121,117 | | 2012 | 125,313 | | 2011 | 130,611 | | 2010 | 135,876 | | 2009 | 139,617 | | 2008 | 140,625 | | 2007 | 138,775 | | 2006 | 135,227 | | 2005 | 131,171 | | 2004 | 127,341 | | 2003 | 124,068 | | 2002 | 121,465 | | 2001 | 119,454 | | 2000 | 117,774 | | 1999 | 116,075 | | 1998 | 114,187 | | 1997 | 112,122 | | 1996 | 109,924 | | 1995 | 106,817 | | 1994 | 103,458 | | 1993 | 99,967 | | 1992 | 97,334 | | 1991 | 96,128 | | 1990 | 96,403 | | 1989 | 98,165 | | 1988 | 101,501 | | 1987 | 106,052 | | 1986 | 111,542 | | 1985 | 117,859 | | 1984 | 124,054 | | 1983 | 128,596 | | 1982 | 130,812 | | 1981 | 130,951 | | 1980 | 129,601 | | 1979 | 127,685 | | 1978 | 125,930 | | 1977 | 124,781 | | 1976 | 124,492 | | 1975 | 125,212 | | 1974 | 125,068 | | 1973 | 122,318 | | 1972 | 116,677 | | 1971 | 107,545 | | 1970 | 95,779 | | 1969 | 84,927 | | 1968 | 77,917 | | 1967 | 75,402 | | 1966 | 77,222 | | 1965 | 81,884 | | 1964 | 87,631 | | 1963 | 92,804 | | 1962 | 96,584 | | 1961 | 98,647 | | 1960 | 98,955 |
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