Year	Cases per 100,000
1990	3.53
1991	3.56
1992	3.59
1993	3.62
1994	3.65
1995	3.68
1996	3.75
1997	3.83
1998	3.9
1999	3.98
2000	4.06
2001	4.12
2002	4.19
2003	4.25
2004	4.31
2005	4.38
2006	4.41
2007	4.43
2008	4.46
2009	4.49
2010	4.51
2011	4.53
2012	4.55
2013	4.57
2014	4.59
2015	4.61
2016	4.63