Year	Number of
1990	1795
1991	2013
1992	2170
1993	2346
1994	2524
1995	2726
1996	2915
1997	3174
1998	3474
1999	3821
2000	4223
2001	4626
2002	5002
2003	5275
2004	5391
2005	5391
2006	5322
2007	5251