Year	Number of
1990	10130
1991	10080
1992	10020
1993	9962
1994	9899
1995	9834
1996	9767
1997	9699
1998	9629
1999	9558
2000	9484
2001	9409
2002	9330
2003	9249
2004	9165
2005	9076
2006	8984
2007	8889