Year	Cases per 100,000
1990	13.95
1991	14.08
1992	14.06
1993	13.85
1994	13.54
1995	13.19
1996	12.84
1997	12.23
1998	11.71
1999	11.48
2000	11.36
2001	11.13
2002	11.04
2003	11.05
2004	11.28
2005	11.42
2006	11.65
2007	11.85
2008	11.9
2009	11.99
2010	11.98
2011	12.14
2012	12.31
2013	12.41
2014	12.51
2015	12.66
2016	12.77