Year	Number of
1990	5057
1991	4695
1992	4303
1993	3918
1994	3577
1995	3299
1996	3155
1997	3085
1998	2915
1999	2925
2000	2878
2001	2942
2002	2789
2003	2797
2004	2757
2005	2624
2006	2631
2007	2390