Year	Cases per 100,000
1990	6.91
1991	6.95
1992	6.98
1993	7.02
1994	7.06
1995	7.04
1996	7.24
1997	7.47
1998	7.58
1999	7.65
2000	7.88
2001	8.07
2002	8.19
2003	8.25
2004	8.3
2005	8.37
2006	8.38
2007	8.43
2008	8.4
2009	8.48
2010	8.55
2011	8.54
2012	8.55
2013	8.53
2014	8.52
2015	8.47
2016	8.43