Year | Value | 2022 | 24,892 | 2021 | 24,554 | 2020 | 24,326 | 2019 | 24,114 | 2018 | 23,879 | 2017 | 23,628 | 2016 | 23,341 | 2015 | 22,988 | 2014 | 22,546 | 2013 | 21,994 | 2012 | 21,331 | 2011 | 20,571 | 2010 | 19,726 | 2009 | 18,799 | 2008 | 17,805 | 2007 | 16,773 | 2006 | 15,744 | 2005 | 14,767 | 2004 | 13,891 | 2003 | 13,137 | 2002 | 12,512 | 2001 | 12,022 | 2000 | 11,660 | 1999 | 11,416 | 1998 | 11,282 | 1997 | 11,239 | 1996 | 11,254 | 1995 | 11,291 | 1994 | 11,298 | 1993 | 11,250 | 1992 | 11,178 | 1991 | 11,144 | 1990 | 11,107 | 1989 | 11,028 | 1988 | 10,921 | 1987 | 10,785 | 1986 | 10,613 | 1985 | 10,399 | 1984 | 10,145 | 1983 | 9,848 | 1982 | 9,514 | 1981 | 9,153 | 1980 | 8,784 | 1979 | 8,533 | 1978 | 8,596 | 1977 | 8,844 | 1976 | 9,066 | 1975 | 9,265 | 1974 | 9,437 | 1973 | 9,439 | 1972 | 9,299 | 1971 | 9,194 | 1970 | 9,050 | 1969 | 8,887 | 1968 | 8,724 | 1967 | 8,512 | 1966 | 8,330 | 1965 | 8,197 | 1964 | 8,076 | 1963 | 7,853 | 1962 | 7,550 | 1961 | 7,332 | 1960 | 7,279 |
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