Year | Value | 2024 | 29,923 | 2023 | 32,475 | 2022 | 34,829 | 2021 | 36,991 | 2020 | 38,365 | 2019 | 38,310 | 2018 | 37,681 | 2017 | 36,972 | 2016 | 36,403 | 2015 | 35,881 | 2014 | 35,509 | 2013 | 35,011 | 2012 | 34,341 | 2011 | 33,770 | 2010 | 32,907 | 2009 | 31,107 | 2008 | 28,489 | 2007 | 25,514 | 2006 | 22,798 | 2005 | 20,351 | 2004 | 18,533 | 2003 | 17,484 | 2002 | 16,884 | 2001 | 16,608 | 2000 | 16,661 | 1999 | 17,108 | 1998 | 17,842 | 1997 | 18,809 | 1996 | 20,204 | 1995 | 21,911 | 1994 | 23,515 | 1993 | 24,278 | 1992 | 24,396 | 1991 | 24,568 | 1990 | 24,464 | 1989 | 23,381 | 1988 | 22,500 | 1987 | 22,572 | 1986 | 22,530 | 1985 | 22,261 | 1984 | 21,895 | 1983 | 21,516 | 1982 | 21,111 | 1981 | 20,732 | 1980 | 20,388 | 1979 | 19,966 | 1978 | 19,694 | 1977 | 19,859 | 1976 | 20,188 | 1975 | 20,414 |
|