Year | Value | 2022 | 9,545 | 2021 | 9,697 | 2020 | 9,892 | 2019 | 10,138 | 2018 | 10,362 | 2017 | 10,564 | 2016 | 10,795 | 2015 | 11,050 | 2014 | 11,282 | 2013 | 11,500 | 2012 | 11,646 | 2011 | 11,681 | 2010 | 11,634 | 2009 | 11,523 | 2008 | 11,444 | 2007 | 11,492 | 2006 | 11,630 | 2005 | 11,793 | 2004 | 11,982 | 2003 | 12,073 | 2002 | 12,060 | 2001 | 12,049 | 2000 | 12,064 | 1999 | 12,169 | 1998 | 12,472 | 1997 | 12,866 | 1996 | 13,211 | 1995 | 13,560 | 1994 | 13,877 | 1993 | 14,146 | 1992 | 14,321 | 1991 | 14,352 | 1990 | 14,311 | 1989 | 14,186 | 1988 | 13,843 | 1987 | 13,387 | 1986 | 12,982 | 1985 | 12,515 | 1984 | 11,994 | 1983 | 11,585 | 1982 | 11,300 | 1981 | 11,037 | 1980 | 10,831 | 1979 | 10,729 | 1978 | 10,698 | 1977 | 10,654 | 1976 | 10,589 | 1975 | 10,548 | 1974 | 10,520 | 1973 | 10,480 | 1972 | 10,418 | 1971 | 10,270 | 1970 | 10,037 | 1969 | 9,782 | 1968 | 9,508 | 1967 | 9,227 | 1966 | 8,939 | 1965 | 8,647 | 1964 | 8,359 | 1963 | 8,104 | 1962 | 7,901 | 1961 | 7,715 | 1960 | 7,512 |
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