Year | Value | 2022 | 12,326 | 2021 | 12,336 | 2020 | 12,139 | 2019 | 11,716 | 2018 | 11,186 | 2017 | 10,673 | 2016 | 10,216 | 2015 | 9,864 | 2014 | 9,707 | 2013 | 9,715 | 2012 | 9,807 | 2011 | 9,932 | 2010 | 10,087 | 2009 | 10,240 | 2008 | 10,338 | 2007 | 10,419 | 2006 | 10,481 | 2005 | 10,470 | 2004 | 10,402 | 2003 | 10,303 | 2002 | 10,152 | 2001 | 9,929 | 2000 | 9,655 | 1999 | 9,335 | 1998 | 8,980 | 1997 | 8,603 | 1996 | 8,234 | 1995 | 7,880 | 1994 | 7,522 | 1993 | 7,160 | 1992 | 6,797 | 1991 | 6,444 | 1990 | 6,111 | 1989 | 5,813 | 1988 | 5,565 | 1987 | 5,360 | 1986 | 5,191 | 1985 | 5,066 | 1984 | 4,969 | 1983 | 4,872 | 1982 | 4,751 | 1981 | 4,609 | 1980 | 4,464 | 1979 | 4,321 | 1978 | 4,182 | 1977 | 4,064 | 1976 | 3,963 | 1975 | 3,859 | 1974 | 3,745 | 1973 | 3,620 | 1972 | 3,482 | 1971 | 3,316 | 1970 | 3,132 | 1969 | 2,958 | 1968 | 2,803 | 1967 | 2,673 | 1966 | 2,577 | 1965 | 2,514 | 1964 | 2,467 | 1963 | 2,427 | 1962 | 2,376 | 1961 | 2,293 | 1960 | 2,170 |
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