Year	Cases per 100,000
1958	2.25
1959	2.4
1960	2.45
1961	2.38
1962	2.25
1963	2.57
1964	3.37
1965	3.18
1966	3.4
1967	3.47
1968	3.68
1969	3.88
1970	3.88
1971	4.3745
1972	4.289
1973	4.5535
1974	4.388
1975	4.5925
1976	4.867
1977	4.5215
1978	4.726
1979	5.0405
1980	4.855
1981	5.3095
1982	5.334
1983	5.2985
1984	5.043
1985	5.1975
1986	5.262
1987	4.9165
1988	5.191
1989	5.3055
1990	5.46
1991	5.44
1992	5.42
1993	5.41
1994	5.39
1995	5.37
1996	5.32
1997	5.28
1998	5.23
1999	5.19
2000	5.15
2001	5.17
2002	5.19
2003	5.22
2004	5.25
2005	5.29
2006	5.31
2007	5.32
2008	5.35
2009	5.37
2010	5.4
2011	5.47
2012	5.55
2013	5.63
2014	5.72
2015	5.8
2016	5.89