| Year | Value | | 2022 | 10,879 | | 2021 | 10,317 | | 2020 | 9,796 | | 2019 | 9,248 | | 2018 | 8,760 | | 2017 | 8,452 | | 2016 | 8,263 | | 2015 | 8,091 | | 2014 | 7,930 | | 2013 | 7,786 | | 2012 | 7,591 | | 2011 | 7,320 | | 2010 | 7,037 | | 2009 | 6,781 | | 2008 | 6,589 | | 2007 | 6,524 | | 2006 | 6,597 | | 2005 | 6,726 | | 2004 | 6,799 | | 2003 | 6,783 | | 2002 | 6,673 | | 2001 | 6,465 | | 2000 | 6,114 | | 1999 | 5,676 | | 1998 | 5,266 | | 1997 | 4,947 | | 1996 | 4,695 | | 1995 | 4,523 | | 1994 | 4,430 | | 1993 | 4,352 | | 1992 | 4,244 | | 1991 | 4,077 | | 1990 | 3,898 | | 1989 | 3,711 | | 1988 | 3,498 | | 1987 | 3,308 | | 1986 | 3,149 | | 1985 | 3,013 | | 1984 | 2,912 | | 1983 | 2,813 | | 1982 | 2,678 | | 1981 | 2,523 | | 1980 | 2,391 | | 1979 | 2,276 | | 1978 | 2,170 | | 1977 | 2,091 | | 1976 | 2,025 | | 1975 | 1,960 | | 1974 | 1,890 | | 1973 | 1,832 | | 1972 | 1,778 | | 1971 | 1,699 | | 1970 | 1,609 | | 1969 | 1,530 | | 1968 | 1,461 | | 1967 | 1,395 | | 1966 | 1,327 | | 1965 | 1,255 | | 1964 | 1,188 | | 1963 | 1,137 | | 1962 | 1,075 | | 1961 | 980 | | 1960 | 908 |
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