| Year | Value | | 2022 | 14,742 | | 2021 | 14,256 | | 2020 | 13,688 | | 2019 | 13,091 | | 2018 | 12,528 | | 2017 | 12,034 | | 2016 | 11,610 | | 2015 | 11,239 | | 2014 | 10,885 | | 2013 | 10,502 | | 2012 | 10,075 | | 2011 | 9,613 | | 2010 | 9,174 | | 2009 | 8,780 | | 2008 | 8,386 | | 2007 | 7,978 | | 2006 | 7,550 | | 2005 | 7,103 | | 2004 | 6,645 | | 2003 | 6,193 | | 2002 | 5,751 | | 2001 | 5,307 | | 2000 | 4,868 | | 1999 | 4,448 | | 1998 | 4,074 | | 1997 | 3,794 | | 1996 | 3,621 | | 1995 | 3,533 | | 1994 | 3,488 | | 1993 | 3,424 | | 1992 | 3,314 | | 1991 | 3,179 | | 1990 | 3,045 | | 1989 | 2,941 | | 1988 | 2,877 | | 1987 | 2,840 | | 1986 | 2,810 | | 1985 | 2,761 | | 1984 | 2,675 | | 1983 | 2,547 | | 1982 | 2,386 | | 1981 | 2,213 | | 1980 | 2,057 | | 1979 | 1,938 | | 1978 | 1,854 | | 1977 | 1,796 | | 1976 | 1,759 | | 1975 | 1,734 | | 1974 | 1,712 | | 1973 | 1,681 | | 1972 | 1,629 | | 1971 | 1,548 | | 1970 | 1,446 | | 1969 | 1,350 | | 1968 | 1,275 | | 1967 | 1,219 | | 1966 | 1,181 | | 1965 | 1,152 | | 1964 | 1,113 | | 1963 | 1,056 | | 1962 | 984 | | 1961 | 898 | | 1960 | 837 |
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