Year	Cases per 100,000
1990	8.04
1991	8.05
1992	8.07
1993	8.1
1994	8.12
1995	8.15
1996	8.19
1997	8.23
1998	8.27
1999	8.32
2000	8.37
2001	8.42
2002	8.48
2003	8.54
2004	8.61
2005	8.68
2006	8.71
2007	8.74
2008	8.77
2009	8.8
2010	8.84
2011	8.84
2012	8.86
2013	8.87
2014	8.88
2015	8.89
2016	8.91