Year	Cases per 100,000
1990	9.66
1991	9.65
1992	9.64
1993	9.52
1994	9.56
1995	9.57
1996	9.71
1997	9.61
1998	9.61
1999	9.61
2000	9.66
2001	9.47
2002	9.19
2003	9.15
2004	8.87
2005	8.67
2006	8.67
2007	8.69
2008	8.78
2009	8.81
2010	8.87
2011	9.04
2012	9.2
2013	9.33
2014	9.45
2015	9.59
2016	9.73