Year	Cases per 100,000
1990	3.68
1991	3.73
1992	3.79
1993	3.85
1994	3.91
1995	3.97
1996	4.03
1997	4.1
1998	4.16
1999	4.23
2000	4.3
2001	4.47
2002	4.65
2003	4.85
2004	5.05
2005	5.26
2006	5.3
2007	5.35
2008	5.39
2009	5.44
2010	5.49
2011	5.51
2012	5.53
2013	5.55
2014	5.58
2015	5.6
2016	5.63