Year	Cases per 100,000
1990	9.8
1991	9.95
1992	10.07
1993	10.19
1994	10.32
1995	10.41
1996	10.52
1997	10.53
1998	10.68
1999	10.77
2000	10.82
2001	10.96
2002	11.14
2003	11.34
2004	11.56
2005	11.74
2006	11.99
2007	12.28
2008	12.53
2009	12.8
2010	13.1
2011	13.28
2012	13.4
2013	13.57
2014	13.7
2015	13.71
2016	13.76