| Year | Value | | 2022 | 4,794 | | 2021 | 4,588 | | 2020 | 4,386 | | 2019 | 4,195 | | 2018 | 4,017 | | 2017 | 3,851 | | 2016 | 3,696 | | 2015 | 3,559 | | 2014 | 3,436 | | 2013 | 3,313 | | 2012 | 3,189 | | 2011 | 3,058 | | 2010 | 2,924 | | 2009 | 2,756 | | 2008 | 2,562 | | 2007 | 2,375 | | 2006 | 2,203 | | 2005 | 2,059 | | 2004 | 1,937 | | 2003 | 1,838 | | 2002 | 1,766 | | 2001 | 1,716 | | 2000 | 1,680 | | 1999 | 1,655 | | 1998 | 1,633 | | 1997 | 1,605 | | 1996 | 1,571 | | 1995 | 1,536 | | 1994 | 1,502 | | 1993 | 1,476 | | 1992 | 1,463 | | 1991 | 1,464 | | 1990 | 1,474 | | 1989 | 1,479 | | 1988 | 1,474 | | 1987 | 1,464 | | 1986 | 1,442 | | 1985 | 1,408 | | 1984 | 1,364 | | 1983 | 1,312 | | 1982 | 1,259 | | 1981 | 1,206 | | 1980 | 1,155 | | 1979 | 1,155 | | 1978 | 1,165 | | 1977 | 1,121 | | 1976 | 1,061 | | 1975 | 1,006 | | 1974 | 952 | | 1973 | 902 | | 1972 | 854 | | 1971 | 808 | | 1970 | 763 | | 1969 | 719 | | 1968 | 681 | | 1967 | 652 | | 1966 | 626 | | 1965 | 605 | | 1964 | 588 | | 1963 | 570 | | 1962 | 554 | | 1961 | 536 | | 1960 | 512 |
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