Year	Cases per 100,000
1990	7.69
1991	7.69
1992	7.68
1993	7.71
1994	7.75
1995	7.82
1996	7.91
1997	8.04
1998	8.03
1999	8.08
2000	8.2
2001	8.23
2002	8.32
2003	8.25
2004	8.24
2005	8.27
2006	8.33
2007	8.35
2008	8.33
2009	8.33
2010	8.3
2011	8.28
2012	8.25
2013	8.22
2014	8.18
2015	8.14
2016	8.11