Year	Cases per 100,000
1990	7.05
1991	7.31
1992	7.57
1993	7.85
1994	8.13
1995	8.43
1996	8.69
1997	8.95
1998	9.23
1999	9.51
2000	9.81
2001	9.99
2002	10.18
2003	10.38
2004	10.58
2005	10.78
2006	10.94
2007	11.09
2008	11.25
2009	11.41
2010	11.58
2011	11.79
2012	12.01
2013	12.23
2014	12.45
2015	12.68
2016	12.92