Year	Cases per 100,000
1990	5.38
1991	5.4
1992	5.42
1993	5.44
1994	5.47
1995	5.49
1996	5.56
1997	5.63
1998	5.7
1999	5.77
2000	5.84
2001	5.86
2002	5.88
2003	5.9
2004	5.92
2005	5.94
2006	6.1
2007	6.27
2008	6.45
2009	6.63
2010	6.83
2011	6.81
2012	6.81
2013	6.8
2014	6.79
2015	6.78
2016	6.78