Year	Cases per 100,000
1990	5.26
1991	5.37
1992	5.49
1993	5.61
1994	5.74
1995	5.88
1996	5.95
1997	6.01
1998	6.08
1999	6.14
2000	6.21
2001	6.18
2002	6.16
2003	6.13
2004	6.11
2005	6.1
2006	6.37
2007	6.67
2008	7.06
2009	7.6
2010	8.57
2011	8.55
2012	8.59
2013	8.69
2014	8.86
2015	9.12
2016	9.41