Year	Cases per 100,000
1990	9.85
1991	9.71
1992	9.57
1993	9.42
1994	9.27
1995	9.16
1996	8.99
1997	8.79
1998	8.58
1999	8.39
2000	8.2
2001	8.01
2002	7.85
2003	7.69
2004	7.54
2005	7.4
2006	7.25
2007	7.09
2008	6.94
2009	6.81
2010	6.7
2011	6.55
2012	6.45
2013	6.35
2014	6.24
2015	6.14
2016	6.05