Year	Cases per 100,000
1990	11.47
1991	11.47
1992	11.41
1993	11.37
1994	11.31
1995	11.24
1996	11.19
1997	11.18
1998	11.22
1999	11.29
2000	11.43
2001	11.61
2002	11.81
2003	11.97
2004	12.1
2005	12.18
2006	12.21
2007	12.19
2008	12.1
2009	12.04
2010	11.93
2011	11.79
2012	11.64
2013	11.49
2014	11.35
2015	11.22
2016	11.01