Year	Cases per 100,000
1990	4.61
1991	4.64
1992	4.67
1993	4.7
1994	4.73
1995	4.76
1996	4.77
1997	4.78
1998	4.79
1999	4.8
2000	4.81
2001	4.79
2002	4.77
2003	4.75
2004	4.74
2005	4.72
2006	4.75
2007	4.77
2008	4.8
2009	4.83
2010	4.85
2011	4.9
2012	4.95
2013	4.99
2014	5.04
2015	5.09
2016	5.14