Year	Cases per 100,000
1990	8.34
1991	8.41
1992	8.48
1993	8.55
1994	8.63
1995	8.7
1996	8.73
1997	8.76
1998	8.79
1999	8.82
2000	8.85
2001	8.83
2002	8.8
2003	8.78
2004	8.76
2005	8.74
2006	8.74
2007	8.74
2008	8.74
2009	8.74
2010	8.74
2011	8.79
2012	8.83
2013	8.87
2014	8.92
2015	8.96
2016	9.01