Year	Cases per 100,000
1990	4.47
1991	4.58
1992	4.7
1993	4.83
1994	4.95
1995	5.09
1996	5.25
1997	5.42
1998	5.6
1999	5.79
2000	5.99
2001	6.05
2002	6.12
2003	6.19
2004	6.27
2005	6.35
2006	6.38
2007	6.4
2008	6.43
2009	6.46
2010	6.5
2011	6.56
2012	6.62
2013	6.69
2014	6.76
2015	6.83
2016	6.91