Year	Cases per 100,000
1990	8.08
1991	8.18
1992	8.29
1993	8.39
1994	8.5
1995	8.62
1996	8.69
1997	8.76
1998	8.84
1999	8.91
2000	9
2001	9.13
2002	9.28
2003	9.43
2004	9.59
2005	9.76
2006	10.03
2007	10.31
2008	10.61
2009	10.92
2010	11.26
2011	11.58
2012	11.91
2013	12.26
2014	12.62
2015	13
2016	13.4