Year | Value | 2023 | 36,531 | 2022 | 36,139 | 2021 | 35,719 | 2020 | 35,229 | 2019 | 34,639 | 2018 | 33,947 | 2017 | 33,159 | 2016 | 32,279 | 2015 | 31,314 | 2014 | 30,276 | 2013 | 29,183 | 2012 | 28,058 | 2011 | 26,923 | 2010 | 25,800 | 2009 | 24,696 | 2008 | 23,622 | 2007 | 22,602 | 2006 | 21,616 | 2005 | 20,741 | 2004 | 20,011 | 2003 | 19,338 | 2002 | 18,559 | 2001 | 17,644 | 2000 | 16,776 | 1999 | 15,969 | 1998 | 15,143 | 1997 | 14,288 | 1996 | 13,635 | 1995 | 13,345 | 1994 | 13,427 | 1993 | 13,471 | 1992 | 14,075 | 1991 | 14,459 | 1990 | 13,411 | 1989 | 12,101 | 1988 | 11,111 | 1987 | 10,327 | 1986 | 9,613 | 1985 | 9,016 | 1984 | 8,554 | 1983 | 8,203 | 1982 | 7,904 | 1981 | 7,585 | 1980 | 7,196 | 1979 | 6,718 | 1978 | 6,172 | 1977 | 5,606 | 1976 | 5,078 | 1975 | 4,620 | 1974 | 4,240 |
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