Year	Cases per 100,000
1990	8.48
1991	8.58
1992	8.68
1993	8.78
1994	8.89
1995	9.01
1996	9.2
1997	9.41
1998	9.63
1999	9.85
2000	10.08
2001	10.41
2002	10.76
2003	11.12
2004	11.51
2005	11.91
2006	12.51
2007	13.15
2008	13.85
2009	14.59
2010	15.41
2011	16.19
2012	17.04
2013	17.95
2014	18.9
2015	19.92
2016	21.01