| Year | Value | | 2022 | 12,118 | | 2021 | 10,905 | | 2020 | 9,866 | | 2019 | 8,991 | | 2018 | 8,119 | | 2017 | 7,263 | | 2016 | 6,492 | | 2015 | 5,847 | | 2014 | 5,322 | | 2013 | 4,962 | | 2012 | 4,729 | | 2011 | 4,535 | | 2010 | 4,424 | | 2009 | 4,331 | | 2008 | 4,220 | | 2007 | 4,141 | | 2006 | 4,083 | | 2005 | 4,045 | | 2004 | 4,038 | | 2003 | 4,019 | | 2002 | 3,967 | | 2001 | 3,893 | | 2000 | 3,790 | | 1999 | 3,665 | | 1998 | 3,512 | | 1997 | 3,331 | | 1996 | 3,186 | | 1995 | 3,094 | | 1994 | 3,005 | | 1993 | 2,914 | | 1992 | 2,839 | | 1991 | 2,746 | | 1990 | 2,642 | | 1989 | 2,577 | | 1988 | 2,538 | | 1987 | 2,487 | | 1986 | 2,437 | | 1985 | 2,411 | | 1984 | 2,395 | | 1983 | 2,396 | | 1982 | 2,408 | | 1981 | 2,391 | | 1980 | 2,293 | | 1979 | 2,127 | | 1978 | 1,949 | | 1977 | 1,787 | | 1976 | 1,664 | | 1975 | 1,591 | | 1974 | 1,562 | | 1973 | 1,555 | | 1972 | 1,552 | | 1971 | 1,533 | | 1970 | 1,463 | | 1969 | 1,352 | | 1968 | 1,232 | | 1967 | 1,121 | | 1966 | 1,052 | | 1965 | 1,013 | | 1964 | 965 | | 1963 | 937 | | 1962 | 922 | | 1961 | 884 | | 1960 | 838 |
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