| Year | Value | | 2022 | 4,953 | | 2021 | 4,757 | | 2020 | 4,520 | | 2019 | 4,249 | | 2018 | 3,989 | | 2017 | 3,759 | | 2016 | 3,548 | | 2015 | 3,353 | | 2014 | 3,177 | | 2013 | 3,018 | | 2012 | 2,873 | | 2011 | 2,745 | | 2010 | 2,641 | | 2009 | 2,563 | | 2008 | 2,514 | | 2007 | 2,500 | | 2006 | 2,519 | | 2005 | 2,554 | | 2004 | 2,590 | | 2003 | 2,622 | | 2002 | 2,642 | | 2001 | 2,662 | | 2000 | 2,684 | | 1999 | 2,707 | | 1998 | 2,725 | | 1997 | 2,734 | | 1996 | 2,735 | | 1995 | 2,716 | | 1994 | 2,677 | | 1993 | 2,621 | | 1992 | 2,554 | | 1991 | 2,479 | | 1990 | 2,403 | | 1989 | 2,328 | | 1988 | 2,253 | | 1987 | 2,177 | | 1986 | 2,101 | | 1985 | 2,028 | | 1984 | 1,958 | | 1983 | 1,891 | | 1982 | 1,821 | | 1981 | 1,746 | | 1980 | 1,669 | | 1979 | 1,591 | | 1978 | 1,515 | | 1977 | 1,445 | | 1976 | 1,386 | | 1975 | 1,341 | | 1974 | 1,307 | | 1973 | 1,276 | | 1972 | 1,247 | | 1971 | 1,221 | | 1970 | 1,194 | | 1969 | 1,167 | | 1968 | 1,141 | | 1967 | 1,115 | | 1966 | 1,089 | | 1965 | 1,066 | | 1964 | 1,041 | | 1963 | 1,014 | | 1962 | 986 | | 1961 | 957 | | 1960 | 927 |
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