Year	Cases per 100,000
1990	5.4
1991	5.43
1992	5.51
1993	5.55
1994	5.62
1995	5.68
1996	5.98
1997	6.31
1998	6.7
1999	7.11
2000	7.61
2001	7.58
2002	7.55
2003	7.52
2004	7.5
2005	7.47
2006	7.38
2007	7.28
2008	7.19
2009	7.09
2010	7.01
2011	6.94
2012	6.87
2013	6.81
2014	6.75
2015	6.7
2016	6.66