Year	Cases per 100,000
1990	6.78
1991	6.71
1992	6.67
1993	6.63
1994	6.6
1995	6.58
1996	6.57
1997	6.56
1998	6.55
1999	6.56
2000	6.58
2001	6.6
2002	6.62
2003	6.66
2004	6.69
2005	6.74
2006	6.81
2007	6.87
2008	6.93
2009	6.99
2010	7.06
2011	7.05
2012	7.05
2013	7.08
2014	7.1
2015	7.08
2016	7.05