Year	Cases per 100,000
1958	2.02
1959	1.24
1961	1.63
1962	0.9
1964	1.06
1965	0.62
1966	1.59
1968	3.72
1969	1.8
1970	4.5195
1971	0.599
1972	1.5485
1973	0.928
1975	0.9475
1976	1.407
1977	2.2665
1978	1.996
1979	1.1955
1980	2.735
1981	4.3045
1982	3.024
1983	1.8535
1984	2.863
1985	1.8225
1986	2.352
1987	2.4015
1988	3.621
1989	2.9005
1990	1.54
1991	1.58
1992	1.62
1993	1.67
1994	1.71
1995	1.76
1996	1.8
1997	1.83
1998	1.87
1999	1.91
2000	1.95
2001	2
2002	2.05
2003	2.1
2004	2.15
2005	2.21
2006	2.24
2007	2.28
2008	2.32
2009	2.36
2010	2.4
2011	2.48
2012	2.57
2013	2.65
2014	2.74
2015	2.83
2016	2.93