Year	Cases per 100,000
1990	15.57
1991	14.53
1992	14.12
1993	13.7
1994	13.15
1995	12.9
1996	12.33
1997	12.05
1998	11.83
1999	11.9
2000	11.98
2001	12.33
2002	12.39
2003	12.71
2004	12.84
2005	13.08
2006	13.29
2007	13.46
2008	13.52
2009	13.68
2010	13.83
2011	13.93
2012	13.98
2013	14.01
2014	14
2015	14
2016	14.02