Year	Cases per 100,000
1958	2.82
1959	9.52
1960	8.03
1961	4
1962	2.65
1963	8.1
1964	11.08
1965	5.48
1966	8.84
1967	12.99
1968	10.24
1969	13.04
1970	8.33
1971	11.959
1972	15.768
1973	6.407
1974	10.886
1975	18.025
1976	16.444
1977	16.643
1978	18.782
1979	25.121
1980	23.45
1981	26.599
1982	21.268
1983	20.747
1984	26.886
1985	22.835
1986	36.364
1987	27.883
1988	25.222
1989	20.641
1990	27.92
1991	29.61
1992	30.72
1993	31.43
1994	33.29
1995	34.45
1996	35.07
1997	35.96
1998	36.95
1999	37.79
2000	38.8
2001	40.7
2002	41.23
2003	41.74
2004	42.27
2005	43.3
2006	43.57
2007	43.31
2008	43.06
2009	42.48
2010	43.97
2011	44.57
2012	45.07
2013	45.6
2014	46.47
2015	46.37
2016	45.94