Year	Cases per 100,000
1990	8.17
1991	8.22
1992	8.27
1993	8.33
1994	8.39
1995	8.45
1996	8.53
1997	8.61
1998	8.7
1999	8.78
2000	8.87
2001	8.96
2002	9.05
2003	9.14
2004	9.24
2005	9.34
2006	9.31
2007	9.27
2008	9.24
2009	9.21
2010	9.19
2011	9.26
2012	9.34
2013	9.42
2014	9.5
2015	9.58
2016	9.66