| Year | Value | | 2022 | 5,719 | | 2021 | 5,585 | | 2020 | 5,413 | | 2019 | 5,221 | | 2018 | 5,026 | | 2017 | 4,825 | | 2016 | 4,614 | | 2015 | 4,400 | | 2014 | 4,183 | | 2013 | 3,970 | | 2012 | 3,772 | | 2011 | 3,593 | | 2010 | 3,439 | | 2009 | 3,306 | | 2008 | 3,187 | | 2007 | 3,081 | | 2006 | 2,983 | | 2005 | 2,890 | | 2004 | 2,794 | | 2003 | 2,685 | | 2002 | 2,565 | | 2001 | 2,463 | | 2000 | 2,385 | | 1999 | 2,306 | | 1998 | 2,228 | | 1997 | 2,165 | | 1996 | 2,106 | | 1995 | 2,045 | | 1994 | 1,985 | | 1993 | 1,926 | | 1992 | 1,857 | | 1991 | 1,808 | | 1990 | 1,794 | | 1989 | 1,788 | | 1988 | 1,787 | | 1987 | 1,789 | | 1986 | 1,792 | | 1985 | 1,792 | | 1984 | 1,789 | | 1983 | 1,784 | | 1982 | 1,776 | | 1981 | 1,765 | | 1980 | 1,758 | | 1979 | 1,751 | | 1978 | 1,739 | | 1977 | 1,722 | | 1976 | 1,702 | | 1975 | 1,678 | | 1974 | 1,652 | | 1973 | 1,627 | | 1972 | 1,601 | | 1971 | 1,574 | | 1970 | 1,551 | | 1969 | 1,533 | | 1968 | 1,517 | | 1967 | 1,502 | | 1966 | 1,486 | | 1965 | 1,469 | | 1964 | 1,451 | | 1963 | 1,429 | | 1962 | 1,408 | | 1961 | 1,387 | | 1960 | 1,368 |
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