Year | Value | 2023 | 42,577 | 2022 | 41,619 | 2021 | 41,115 | 2020 | 40,034 | 2019 | 38,339 | 2018 | 36,562 | 2017 | 34,822 | 2016 | 33,239 | 2015 | 32,004 | 2014 | 31,074 | 2013 | 30,227 | 2012 | 29,453 | 2011 | 28,900 | 2010 | 28,646 | 2009 | 28,705 | 2008 | 28,992 | 2007 | 29,267 | 2006 | 29,256 | 2005 | 28,813 | 2004 | 27,913 | 2003 | 26,632 | 2002 | 25,138 | 2001 | 23,616 | 2000 | 22,169 | 1999 | 20,805 | 1998 | 19,549 | 1997 | 18,486 | 1996 | 17,706 | 1995 | 17,263 | 1994 | 17,168 | 1993 | 17,332 | 1992 | 17,556 | 1991 | 17,621 | 1990 | 17,395 | 1989 | 16,865 | 1988 | 16,096 | 1987 | 15,236 | 1986 | 14,474 | 1985 | 13,919 | 1984 | 13,600 | 1983 | 13,493 | 1982 | 13,527 | 1981 | 13,469 | 1980 | 13,244 | 1979 | 12,938 | 1978 | 12,532 | 1977 | 12,048 | 1976 | 11,517 | 1975 | 10,966 | 1974 | 10,410 |
|