| Year | Value | | 2022 | 3,050 | | 2021 | 2,996 | | 2020 | 2,931 | | 2019 | 2,818 | | 2018 | 2,664 | | 2017 | 2,503 | | 2016 | 2,344 | | 2015 | 2,197 | | 2014 | 2,069 | | 2013 | 1,958 | | 2012 | 1,857 | | 2011 | 1,768 | | 2010 | 1,694 | | 2009 | 1,633 | | 2008 | 1,578 | | 2007 | 1,526 | | 2006 | 1,483 | | 2005 | 1,434 | | 2004 | 1,370 | | 2003 | 1,300 | | 2002 | 1,249 | | 2001 | 1,194 | | 2000 | 1,140 | | 1999 | 1,099 | | 1998 | 1,059 | | 1997 | 994 | | 1996 | 903 | | 1995 | 823 | | 1994 | 762 | | 1993 | 722 | | 1992 | 706 | | 1991 | 692 | | 1990 | 665 | | 1989 | 644 | | 1988 | 629 | | 1987 | 620 | | 1986 | 633 | | 1985 | 663 | | 1984 | 686 | | 1983 | 693 | | 1982 | 686 | | 1981 | 677 | | 1980 | 682 | | 1979 | 702 | | 1978 | 720 | | 1977 | 723 | | 1976 | 710 | | 1975 | 686 | | 1974 | 659 | | 1973 | 628 | | 1972 | 598 | | 1971 | 565 | | 1970 | 528 | | 1969 | 490 | | 1968 | 449 | | 1967 | 410 | | 1966 | 380 | | 1965 | 356 | | 1964 | 336 | | 1963 | 319 | | 1962 | 303 | | 1961 | 288 | | 1960 | 274 |
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