Year | Value | 2022 | 15,079 | 2021 | 15,027 | 2020 | 15,045 | 2019 | 15,173 | 2018 | 15,414 | 2017 | 15,664 | 2016 | 15,693 | 2015 | 15,484 | 2014 | 15,253 | 2013 | 15,020 | 2012 | 14,770 | 2011 | 14,658 | 2010 | 14,645 | 2009 | 14,522 | 2008 | 14,309 | 2007 | 14,064 | 2006 | 13,823 | 2005 | 13,464 | 2004 | 12,936 | 2003 | 12,347 | 2002 | 11,712 | 2001 | 11,107 | 2000 | 10,836 | 1999 | 10,855 | 1998 | 10,878 | 1997 | 10,900 | 1996 | 10,910 | 1995 | 10,895 | 1994 | 10,855 | 1993 | 10,785 | 1992 | 10,682 | 1991 | 10,550 | 1990 | 10,335 | 1989 | 10,062 | 1988 | 9,804 | 1987 | 9,571 | 1986 | 9,386 | 1985 | 9,243 | 1984 | 9,112 | 1983 | 8,969 | 1982 | 8,781 | 1981 | 8,559 | 1980 | 8,312 | 1979 | 8,039 | 1978 | 7,764 | 1977 | 7,507 | 1976 | 7,277 | 1975 | 7,066 | 1974 | 6,973 | 1973 | 6,981 | 1972 | 6,971 | 1971 | 6,944 | 1970 | 6,921 | 1969 | 6,805 | 1968 | 6,611 | 1967 | 6,472 | 1966 | 6,394 | 1965 | 6,306 | 1964 | 6,179 | 1963 | 6,034 | 1962 | 5,840 | 1961 | 5,558 | 1960 | 5,363 |
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