Year | Value | 2022 | 27,107 | 2021 | 26,400 | 2020 | 25,684 | 2019 | 24,921 | 2018 | 24,120 | 2017 | 23,297 | 2016 | 22,414 | 2015 | 21,488 | 2014 | 20,581 | 2013 | 19,711 | 2012 | 18,855 | 2011 | 18,028 | 2010 | 17,269 | 2009 | 16,768 | 2008 | 16,471 | 2007 | 16,190 | 2006 | 15,969 | 2005 | 15,803 | 2004 | 15,668 | 2003 | 15,552 | 2002 | 15,442 | 2001 | 15,307 | 2000 | 15,147 | 1999 | 14,977 | 1998 | 14,760 | 1997 | 14,452 | 1996 | 14,052 | 1995 | 13,549 | 1994 | 12,954 | 1993 | 12,342 | 1992 | 11,767 | 1991 | 11,260 | 1990 | 10,838 | 1989 | 10,470 | 1988 | 10,117 | 1987 | 9,767 | 1986 | 9,419 | 1985 | 9,082 | 1984 | 8,763 | 1983 | 8,475 | 1982 | 8,223 | 1981 | 8,019 | 1980 | 7,815 | 1979 | 7,672 | 1978 | 7,623 | 1977 | 7,578 | 1976 | 7,525 | 1975 | 7,452 | 1974 | 7,370 | 1973 | 7,317 | 1972 | 7,309 | 1971 | 7,307 | 1970 | 7,262 | 1969 | 7,287 | 1968 | 7,406 | 1967 | 7,498 | 1966 | 7,545 | 1965 | 7,531 | 1964 | 7,458 | 1963 | 7,341 | 1962 | 7,191 | 1961 | 6,966 | 1960 | 6,735 |
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