Year	Cases per 100,000
1990	7.31
1991	7.37
1992	7.43
1993	7.5
1994	7.56
1995	7.63
1996	7.66
1997	7.69
1998	7.73
1999	7.77
2000	7.81
2001	7.8
2002	7.79
2003	7.78
2004	7.78
2005	7.78
2006	7.78
2007	7.79
2008	7.79
2009	7.8
2010	7.8
2011	7.85
2012	7.9
2013	7.95
2014	8.01
2015	8.06
2016	8.11