Year	Total
1990	13400
1991	12140
1992	11840
1993	11370
1994	10530
1995	12190
1996	12090
1997	12480
1998	12730
1999	10530
2000	11430
2001	11090
2002	11290
2003	11410
2004	11550
2005	10290
2006	10560
2007	10570
2008	10790
2009	9440