Year	Cases per 100,000
1990	3.45
1991	3.45
1992	3.47
1993	3.5
1994	3.52
1995	3.54
1996	3.58
1997	3.62
1998	3.65
1999	3.68
2000	3.71
2001	3.79
2002	3.86
2003	3.93
2004	4.01
2005	4.09
2006	4.18
2007	4.26
2008	4.36
2009	4.47
2010	4.58
2011	4.59
2012	4.61
2013	4.62
2014	4.64
2015	4.66
2016	4.68