| By year (125,069) | ||||
|---|---|---|---|---|
| 2015 (1,991) | 2014 (9,092) | 2013 (6,266) | 2012 (5,471) | 2011 (5,477) |
| 2010 (4,348) | 2009 (8,202) | 2008 (11,097) | 2007 (12,551) | 2006 (22,348) |
| 2005 (3,899) | 2004 (1,097) | 2003 (1,075) | 2002 (3,913) | 2001 (836) |
| 2000 (995) | 1999 (2,461) | 1998 (3,825) | 1997 (3,092) | 1996 (3,354) |
| 1995 (1,972) | 1994 (2,373) | 1993 (997) | 1992 (1,700) | 1991 (697) |
| 1990 (564) | 1989 (892) | 1988 (971) | 1987 (650) | 1986 (533) |
| 1985 (173) | 1984 (209) | 1983 (246) | 1982 (323) | 1981 (346) |
| 1980 (299) | 1979 (200) | 1978 (156) | 1977 (188) | 1976 (190) |