Year	Cases per 100,000
1983	42.045
1984	47.29
1985	49.335
1986	53.25
1987	60.325
1988	60.88
1989	65.575
1990	67.37
1991	68.88
1992	70.46
1993	72.1
1994	73.8
1995	75.58
1996	75.4
1997	75.25
1998	75.11
1999	75
2000	74.91
2001	75.26
2002	75.63
2003	76.01
2004	76.4
2005	76.81
2006	75.89
2007	74.97
2008	74.1
2009	73.24
2010	72.41
2011	70.89
2012	69.42
2013	68.01
2014	66.66
2015	65.35
2016	64.11