Year	Cases per 100,000
1990	78.7
1991	105.2
1992	133.3
1993	155.2
1994	172.1
1995	185.7
1996	192.6
1997	200.1
1998	202.8
1999	209.6
2000	209
2001	217.5
2002	218.9
2003	225.9
2004	215.5
2005	203.4
2006	189.3
2007	176