Year | Value | 2023 | 33,247 | 2022 | 32,483 | 2021 | 31,638 | 2020 | 30,707 | 2019 | 29,691 | 2018 | 28,620 | 2017 | 27,518 | 2016 | 26,403 | 2015 | 25,299 | 2014 | 24,218 | 2013 | 23,165 | 2012 | 22,146 | 2011 | 21,169 | 2010 | 20,235 | 2009 | 19,337 | 2008 | 18,486 | 2007 | 17,698 | 2006 | 16,948 | 2005 | 16,283 | 2004 | 15,723 | 2003 | 15,207 | 2002 | 14,639 | 2001 | 14,035 | 2000 | 13,569 | 1999 | 13,283 | 1998 | 13,060 | 1997 | 12,794 | 1996 | 12,558 | 1995 | 12,367 | 1994 | 12,198 | 1993 | 11,831 | 1992 | 11,917 | 1991 | 11,898 | 1990 | 10,844 | 1989 | 9,736 | 1988 | 8,975 | 1987 | 8,392 | 1986 | 7,854 | 1985 | 7,401 | 1984 | 7,044 | 1983 | 6,761 | 1982 | 6,512 | 1981 | 6,247 | 1980 | 5,925 | 1979 | 5,530 | 1978 | 5,079 | 1977 | 4,614 | 1976 | 4,181 | 1975 | 3,803 | 1974 | 3,488 |
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