Year	Cases per 100,000
1990	8.85
1991	9.19
1992	9.26
1993	9.35
1994	9.75
1995	9.65
1996	9.76
1997	10.43
1998	10.4
1999	10.69
2000	10.69
2001	10.52
2002	10.44
2003	10.44
2004	10.41
2005	10.31
2006	9.91
2007	9.7
2008	9.37
2009	9.06
2010	8.84
2011	8.69
2012	8.63
2013	8.51
2014	8.53
2015	8.63
2016	8.7