Year | Value | 2022 | 3,719 | 2021 | 3,633 | 2020 | 3,554 | 2019 | 3,473 | 2018 | 3,390 | 2017 | 3,300 | 2016 | 3,196 | 2015 | 3,075 | 2014 | 2,933 | 2013 | 2,774 | 2012 | 2,613 | 2011 | 2,458 | 2010 | 2,322 | 2009 | 2,205 | 2008 | 2,103 | 2007 | 2,000 | 2006 | 1,901 | 2005 | 1,821 | 2004 | 1,763 | 2003 | 1,715 | 2002 | 1,662 | 2001 | 1,611 | 2000 | 1,554 | 1999 | 1,493 | 1998 | 1,439 | 1997 | 1,398 | 1996 | 1,350 | 1995 | 1,291 | 1994 | 1,233 | 1993 | 1,167 | 1992 | 1,081 | 1991 | 970 | 1990 | 861 | 1989 | 794 | 1988 | 769 | 1987 | 776 | 1986 | 794 | 1985 | 801 | 1984 | 794 | 1983 | 776 | 1982 | 758 | 1981 | 756 | 1980 | 761 | 1979 | 760 | 1978 | 758 | 1977 | 764 | 1976 | 781 | 1975 | 802 | 1974 | 818 | 1973 | 826 | 1972 | 827 | 1971 | 829 | 1970 | 821 | 1969 | 794 | 1968 | 749 | 1967 | 693 | 1966 | 642 | 1965 | 601 | 1964 | 564 | 1963 | 528 | 1962 | 496 | 1961 | 465 | 1960 | 434 |
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