Year	Cases per 100,000
1990	12.04
1991	11.97
1992	11.91
1993	11.85
1994	11.8
1995	11.74
1996	11.44
1997	11.15
1998	10.87
1999	10.59
2000	10.33
2001	10.6
2002	10.88
2003	11.17
2004	11.47
2005	11.79
2006	11.77
2007	11.75
2008	11.74
2009	11.73
2010	11.72
2011	11.54
2012	11.37
2013	11.2
2014	11.04
2015	10.87
2016	10.72