Year | Value | 2022 | 22,849 | 2021 | 21,963 | 2020 | 21,030 | 2019 | 20,114 | 2018 | 19,234 | 2017 | 18,366 | 2016 | 17,521 | 2015 | 16,742 | 2014 | 16,036 | 2013 | 15,393 | 2012 | 14,838 | 2011 | 14,418 | 2010 | 14,143 | 2009 | 14,086 | 2008 | 14,191 | 2007 | 14,302 | 2006 | 14,383 | 2005 | 14,407 | 2004 | 14,365 | 2003 | 14,230 | 2002 | 13,976 | 2001 | 13,598 | 2000 | 13,080 | 1999 | 12,471 | 1998 | 11,859 | 1997 | 11,272 | 1996 | 10,719 | 1995 | 10,196 | 1994 | 9,665 | 1993 | 9,102 | 1992 | 8,533 | 1991 | 7,996 | 1990 | 7,521 | 1989 | 7,141 | 1988 | 6,858 | 1987 | 6,636 | 1986 | 6,463 | 1985 | 6,338 | 1984 | 6,267 | 1983 | 6,247 | 1982 | 6,265 | 1981 | 6,323 | 1980 | 6,351 | 1979 | 6,370 | 1978 | 6,420 | 1977 | 6,450 | 1976 | 6,469 | 1975 | 6,485 | 1974 | 6,545 | 1973 | 6,645 | 1972 | 6,735 | 1971 | 6,790 | 1970 | 6,770 | 1969 | 6,713 | 1968 | 6,645 | 1967 | 6,535 | 1966 | 6,391 | 1965 | 6,226 | 1964 | 6,050 | 1963 | 5,871 | 1962 | 5,691 | 1961 | 5,510 | 1960 | 5,375 |
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