Year	Cases per 100,000
1990	4.56
1991	4.59
1992	4.62
1993	4.66
1994	4.69
1995	4.73
1996	4.77
1997	4.81
1998	4.85
1999	4.96
2000	5.06
2001	5.1
2002	5.24
2003	5.37
2004	5.62
2005	5.92
2006	5.91
2007	5.85
2008	5.9
2009	6.02
2010	6.06
2011	6.1
2012	6.11
2013	6.02
2014	5.95
2015	5.89
2016	5.83