Year	Cases per 100,000
1990	8.82
1991	9.23
1992	9.37
1993	9.09
1994	9.01
1995	9.2
1996	8.92
1997	9.09
1998	8.75
1999	8.37
2000	8.1
2001	7.92
2002	7.83
2003	7.85
2004	7.63
2005	7.68
2006	7.97
2007	8.02
2008	8.1
2009	8.25
2010	8.51
2011	8.77
2012	9
2013	9.29
2014	9.28
2015	9.39
2016	9.44