Year	Cases per 100,000
1990	8.6
1991	8.76
1992	8.87
1993	9.08
1994	9.37
1995	9.67
1996	10.26
1997	10.78
1998	11.26
1999	11.72
2000	12.19
2001	12.13
2002	12.14
2003	12.01
2004	11.76
2005	11.42
2006	11.08
2007	10.71
2008	10.49
2009	10.28
2010	10.04
2011	9.94
2012	9.86
2013	9.79
2014	9.72
2015	9.66
2016	9.59