Year | Value | 2022 | 1,941 | 2021 | 1,934 | 2020 | 1,929 | 2019 | 1,913 | 2018 | 1,895 | 2017 | 1,864 | 2016 | 1,806 | 2015 | 1,722 | 2014 | 1,616 | 2013 | 1,526 | 2012 | 1,456 | 2011 | 1,362 | 2010 | 1,240 | 2009 | 1,130 | 2008 | 1,029 | 2007 | 926 | 2006 | 854 | 2005 | 812 | 2004 | 808 | 2003 | 842 | 2002 | 906 | 2001 | 989 | 2000 | 1,065 | 1999 | 1,086 | 1998 | 1,060 | 1997 | 1,035 | 1996 | 1,026 | 1995 | 1,030 | 1994 | 1,006 | 1993 | 939 | 1992 | 869 | 1991 | 829 | 1990 | 810 | 1989 | 790 | 1988 | 771 | 1987 | 753 | 1986 | 738 | 1985 | 725 | 1984 | 713 | 1983 | 697 | 1982 | 681 | 1981 | 662 | 1980 | 642 | 1979 | 624 | 1978 | 611 | 1977 | 604 | 1976 | 600 | 1975 | 593 | 1974 | 585 | 1973 | 574 | 1972 | 564 | 1971 | 556 | 1970 | 546 | 1969 | 532 | 1968 | 518 | 1967 | 505 | 1966 | 493 | 1965 | 481 | 1964 | 468 | 1963 | 457 | 1962 | 446 | 1961 | 437 | 1960 | 427 |
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