Year | Value | 2022 | 7,632 | 2021 | 7,596 | 2020 | 7,588 | 2019 | 7,470 | 2018 | 7,264 | 2017 | 7,034 | 2016 | 6,836 | 2015 | 6,715 | 2014 | 6,660 | 2013 | 6,658 | 2012 | 6,695 | 2011 | 6,691 | 2010 | 6,619 | 2009 | 6,342 | 2008 | 6,068 | 2007 | 5,921 | 2006 | 5,722 | 2005 | 5,555 | 2004 | 5,451 | 2003 | 5,367 | 2002 | 5,337 | 2001 | 5,352 | 2000 | 5,088 | 1999 | 4,755 | 1998 | 4,541 | 1997 | 4,382 | 1996 | 4,285 | 1995 | 4,148 | 1994 | 4,043 | 1993 | 3,913 | 1992 | 3,730 | 1991 | 3,557 | 1990 | 3,401 | 1989 | 3,255 | 1988 | 3,096 | 1987 | 2,934 | 1986 | 2,840 | 1985 | 2,810 | 1984 | 2,792 | 1983 | 2,829 | 1982 | 2,887 | 1981 | 2,907 | 1980 | 2,897 | 1979 | 2,846 | 1978 | 2,763 | 1977 | 2,664 | 1976 | 2,566 | 1975 | 2,470 | 1974 | 2,382 | 1973 | 2,307 | 1972 | 2,250 | 1971 | 2,196 | 1970 | 2,139 | 1969 | 2,084 | 1968 | 2,027 | 1967 | 1,967 | 1966 | 1,909 | 1965 | 1,852 | 1964 | 1,795 | 1963 | 1,737 | 1962 | 1,680 | 1961 | 1,623 | 1960 | 1,564 |
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