Year	Number of
1990	2984
1991	2858
1992	2728
1993	2662
1994	2599
1995	2560
1996	2475
1997	2421
1998	2317
1999	2178
2000	2030
2001	1994
2002	1937
2003	1825
2004	1658
2005	1558
2006	1457
2007	1355