Year	Cases per 100,000
1990	7.03
1991	6.86
1992	6.82
1993	6.76
1994	6.76
1995	6.61
1996	6.41
1997	6.28
1998	6.72
1999	6.89
2000	7.77
2001	7.62
2002	7.8
2003	8.36
2004	8.31
2005	8.36
2006	8.11
2007	8.06
2008	8.33
2009	8.16
2010	8.22
2011	7.88
2012	7.79
2013	7.76
2014	7.55
2015	7.33
2016	7.07