Year	Number of
1990	3493
1991	3300
1992	3144
1993	2954
1994	2837
1995	2705
1996	2620
1997	2539
1998	2438
1999	2298
2000	2202
2001	2128
2002	2113
2003	2035
2004	2000
2005	1976
2006	1950
2007	1923