Year	Cases per 100,000
1990	4.73
1991	4.95
1992	5.17
1993	5.41
1994	5.66
1995	5.93
1996	6.14
1997	6.38
1998	6.62
1999	6.88
2000	7.16
2001	7.42
2002	7.69
2003	7.97
2004	8.27
2005	8.59
2006	8.98
2007	9.4
2008	9.85
2009	10.33
2010	10.85
2011	10.91
2012	10.99
2013	11.06
2014	11.14
2015	11.22
2016	11.3