Year	Cases per 100,000
1990	4.41
1991	4.44
1992	4.48
1993	4.52
1994	4.56
1995	4.61
1996	4.6
1997	4.61
1998	4.62
1999	4.62
2000	4.64
2001	4.62
2002	4.61
2003	4.6
2004	4.59
2005	4.59
2006	4.58
2007	4.57
2008	4.56
2009	4.55
2010	4.55
2011	4.54
2012	4.53
2013	4.53
2014	4.52
2015	4.52
2016	4.52