Year	Number of
1990	2036
1991	1944
1992	1870
1993	1772
1994	1717
1995	1650
1996	1611
1997	1574
1998	1523
1999	1446
2000	1395
2001	1357
2002	1356
2003	1313
2004	1298
2005	1290
2006	1282
2007	1326