Year | Value | 2022 | 11,006 | 2021 | 10,632 | 2020 | 10,406 | 2019 | 10,297 | 2018 | 10,358 | 2017 | 10,524 | 2016 | 10,670 | 2015 | 10,941 | 2014 | 11,250 | 2013 | 11,390 | 2012 | 11,413 | 2011 | 11,441 | 2010 | 11,392 | 2009 | 11,235 | 2008 | 10,983 | 2007 | 10,656 | 2006 | 10,429 | 2005 | 10,332 | 2004 | 10,323 | 2003 | 10,343 | 2002 | 10,400 | 2001 | 10,504 | 2000 | 10,517 | 1999 | 10,470 | 1998 | 10,541 | 1997 | 10,690 | 1996 | 10,835 | 1995 | 11,061 | 1994 | 11,277 | 1993 | 11,289 | 1992 | 11,098 | 1991 | 10,791 | 1990 | 10,495 | 1989 | 10,231 | 1988 | 10,061 | 1987 | 10,046 | 1986 | 10,178 | 1985 | 10,427 | 1984 | 10,675 | 1983 | 10,671 | 1982 | 10,455 | 1981 | 10,306 | 1980 | 10,210 | 1979 | 10,052 | 1978 | 10,037 | 1977 | 10,281 | 1976 | 10,473 | 1975 | 10,441 | 1974 | 10,384 | 1973 | 10,274 | 1972 | 10,064 | 1971 | 10,074 | 1970 | 10,366 | 1969 | 10,784 | 1968 | 11,165 | 1967 | 11,378 | 1966 | 11,394 | 1965 | 11,408 | 1964 | 11,426 | 1963 | 11,358 | 1962 | 11,320 | 1961 | 11,285 | 1960 | 11,184 |
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