Year	Cases per 100,000
1958	8.27
1959	17.01
1960	11.91
1961	11.01
1962	16.71
1963	20.76
1964	20.34
1965	28.91
1966	31.1
1967	21.2
1968	25.21
1969	23.15
1970	27.13
1971	33.6225
1972	30.445
1973	33.6175
1974	47.06
1975	57.2025
1976	51.735
1977	51.0375
1978	57.45
1979	69.1425
1980	74.085
1981	74.5575
1982	85.42
1983	96.1125
1984	86.415
1985	99.1075
1986	112.85
1987	111.4525
1988	119.715
1989	128.7575
1990	118.67
1991	121.15
1992	123.74
1993	126.41
1994	129.15
1995	132
1996	133.96
1997	135.99
1998	138.06
1999	140.17
2000	142.35
2001	141.8
2002	141.3
2003	140.8
2004	140.3
2005	139.84
2006	138.73
2007	137.62
2008	136.56
2009	135.52
2010	134.53
2011	136.44
2012	138.43
2013	140.45
2014	142.51
2015	144.61
2016	146.79