| Year | Value | | 2022 | 9,850 | | 2021 | 10,111 | | 2020 | 10,374 | | 2019 | 10,242 | | 2018 | 9,777 | | 2017 | 9,241 | | 2016 | 8,702 | | 2015 | 8,186 | | 2014 | 7,715 | | 2013 | 7,308 | | 2012 | 6,986 | | 2011 | 6,761 | | 2010 | 6,582 | | 2009 | 6,365 | | 2008 | 6,104 | | 2007 | 5,861 | | 2006 | 5,671 | | 2005 | 5,530 | | 2004 | 5,424 | | 2003 | 5,337 | | 2002 | 5,248 | | 2001 | 5,117 | | 2000 | 4,932 | | 1999 | 4,715 | | 1998 | 4,501 | | 1997 | 4,322 | | 1996 | 4,164 | | 1995 | 4,010 | | 1994 | 3,870 | | 1993 | 3,743 | | 1992 | 3,611 | | 1991 | 3,464 | | 1990 | 3,303 | | 1989 | 3,135 | | 1988 | 2,968 | | 1987 | 2,804 | | 1986 | 2,645 | | 1985 | 2,495 | | 1984 | 2,359 | | 1983 | 2,238 | | 1982 | 2,122 | | 1981 | 2,016 | | 1980 | 1,922 | | 1979 | 1,831 | | 1978 | 1,743 | | 1977 | 1,660 | | 1976 | 1,584 | | 1975 | 1,519 | | 1974 | 1,464 | | 1973 | 1,418 | | 1972 | 1,378 | | 1971 | 1,339 | | 1970 | 1,300 | | 1969 | 1,263 | | 1968 | 1,227 | | 1967 | 1,189 | | 1966 | 1,154 | | 1965 | 1,120 | | 1964 | 1,087 | | 1963 | 1,053 | | 1962 | 1,021 | | 1961 | 988 | | 1960 | 955 |
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