Year	Cases per 100,000
1990	13.22
1991	13.63
1992	13.88
1993	13.94
1994	13.86
1995	14.4
1996	14.87
1997	13.76
1998	13.22
1999	13.54
2000	13.54
2001	13.69
2002	13.55
2003	13.05
2004	12.62
2005	12.09
2006	11.64
2007	11.13
2008	10.53
2009	10.8
2010	11.29
2011	11.41
2012	11.47
2013	11.46
2014	11.43
2015	11.4
2016	11.33