Year | Value | 2022 | 12,126 | 2021 | 12,279 | 2020 | 12,449 | 2019 | 12,480 | 2018 | 12,414 | 2017 | 12,266 | 2016 | 12,119 | 2015 | 12,109 | 2014 | 12,104 | 2013 | 11,935 | 2012 | 11,743 | 2011 | 11,604 | 2010 | 11,430 | 2009 | 11,365 | 2008 | 11,202 | 2007 | 10,814 | 2006 | 10,600 | 2005 | 10,605 | 2004 | 10,744 | 2003 | 10,900 | 2002 | 10,929 | 2001 | 10,836 | 2000 | 10,588 | 1999 | 10,271 | 1998 | 10,137 | 1997 | 10,263 | 1996 | 10,343 | 1995 | 10,253 | 1994 | 10,255 | 1993 | 10,240 | 1992 | 10,121 | 1991 | 10,109 | 1990 | 10,333 | 1989 | 10,709 | 1988 | 10,925 | 1987 | 10,944 | 1986 | 10,886 | 1985 | 10,887 | 1984 | 10,884 | 1983 | 10,761 | 1982 | 10,589 | 1981 | 10,471 | 1980 | 10,418 | 1979 | 10,288 | 1978 | 10,126 | 1977 | 9,916 | 1976 | 9,711 | 1975 | 9,495 | 1974 | 9,211 | 1973 | 9,002 | 1972 | 8,813 | 1971 | 8,500 | 1970 | 8,257 | 1969 | 8,127 | 1968 | 7,889 | 1967 | 7,615 | 1966 | 7,332 | 1965 | 6,990 | 1964 | 6,614 | 1963 | 6,216 | 1962 | 5,861 | 1961 | 5,644 | 1960 | 5,573 |
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