Year	Cases per 100,000
1990	6.13
1991	6.18
1992	6.23
1993	6.29
1994	6.35
1995	6.4
1996	6.5
1997	6.6
1998	6.7
1999	6.81
2000	6.92
2001	7.04
2002	7.18
2003	7.32
2004	7.46
2005	7.6
2006	7.71
2007	7.82
2008	7.94
2009	8.05
2010	8.18
2011	8.3
2012	8.42
2013	8.55
2014	8.68
2015	8.81
2016	8.95