Year | Value | 2022 | 7,654 | 2021 | 7,664 | 2020 | 7,676 | 2019 | 7,699 | 2018 | 7,739 | 2017 | 7,800 | 2016 | 7,885 | 2015 | 7,995 | 2014 | 8,170 | 2013 | 8,488 | 2012 | 8,835 | 2011 | 9,047 | 2010 | 9,160 | 2009 | 9,197 | 2008 | 9,127 | 2007 | 9,070 | 2006 | 9,143 | 2005 | 9,268 | 2004 | 9,390 | 2003 | 9,469 | 2002 | 9,466 | 2001 | 9,414 | 2000 | 9,368 | 1999 | 9,324 | 1998 | 9,338 | 1997 | 9,486 | 1996 | 9,704 | 1995 | 9,908 | 1994 | 10,037 | 1993 | 10,061 | 1992 | 10,016 | 1991 | 9,983 | 1990 | 10,019 | 1989 | 10,150 | 1988 | 10,350 | 1987 | 10,558 | 1986 | 10,736 | 1985 | 10,879 | 1984 | 10,994 | 1983 | 11,105 | 1982 | 11,213 | 1981 | 11,305 | 1980 | 11,376 | 1979 | 11,393 | 1978 | 11,382 | 1977 | 11,416 | 1976 | 11,493 | 1975 | 11,602 | 1974 | 11,762 | 1973 | 11,989 | 1972 | 12,300 | 1971 | 12,702 | 1970 | 13,188 | 1969 | 13,736 | 1968 | 14,320 | 1967 | 14,913 | 1966 | 15,490 | 1965 | 15,999 | 1964 | 16,383 | 1963 | 16,607 | 1962 | 16,676 | 1961 | 16,601 | 1960 | 16,487 |
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