Year	Cases per 100,000
1990	3.46
1991	3.45
1992	3.44
1993	3.43
1994	3.41
1995	3.4
1996	3.42
1997	3.44
1998	3.48
1999	3.56
2000	3.63
2001	3.7
2002	3.77
2003	3.84
2004	3.93
2005	4.01
2006	4.11
2007	4.2
2008	4.29
2009	4.37
2010	4.47
2011	4.51
2012	4.55
2013	4.59
2014	4.63
2015	4.66
2016	4.7