Year	Cases per 100,000
1990	6.43
1991	6.78
1992	7.15
1993	7.55
1994	7.96
1995	8.41
1996	8.88
1997	9.39
1998	9.92
1999	10.49
2000	11.09
2001	11.38
2002	11.67
2003	11.97
2004	12.29
2005	12.61
2006	12.96
2007	13.32
2008	13.7
2009	14.08
2010	14.48
2011	14.38
2012	14.28
2013	14.18
2014	14.08
2015	13.99
2016	13.89