Year	Cases per 100,000
1990	8.18
1991	8.38
1992	8.59
1993	8.81
1994	9.03
1995	9.27
1996	9.54
1997	9.82
1998	10.12
1999	10.43
2000	10.74
2001	11.08
2002	11.44
2003	11.8
2004	12.18
2005	12.58
2006	12.98
2007	13.4
2008	13.83
2009	14.28
2010	14.76
2011	15.07
2012	15.39
2013	15.72
2014	16.06
2015	16.42
2016	16.78