Year	Cases per 100,000
1990	59.4
1991	71.1
1992	79.2
1993	86.4
1994	92.3
1995	97.9
1996	101.8
1997	107.2
1998	113
1999	119.4
2000	126.6
2001	133.1
2002	138.3
2003	140.3
2004	138
2005	133.1
2006	127.5
2007	122