Year	Cases per 100,000
1990	3.29
1991	3.34
1992	3.4
1993	3.46
1994	3.51
1995	3.57
1996	3.67
1997	3.76
1998	3.86
1999	3.97
2000	4.08
2001	4.13
2002	4.2
2003	4.26
2004	4.33
2005	4.39
2006	4.44
2007	4.49
2008	4.53
2009	4.58
2010	4.63
2011	4.69
2012	4.75
2013	4.8
2014	4.86
2015	4.92
2016	4.99