Year	Cases per 100,000
1958	13.12
1959	19.63
1960	17.8
1961	10.4
1962	12.14
1963	15.43
1964	23.4
1965	23.59
1966	18.56
1967	14.17
1968	19.27
1969	17.07
1970	21.88
1971	20.4515
1972	25.373
1973	17.2445
1974	29.986
1975	21.7275
1976	29.849
1977	25.7305
1978	31.812
1979	30.0035
1980	38.875
1981	39.8565
1982	36.828
1983	40.8695
1984	46.061
1985	41.1425
1986	43.144
1987	44.6355
1988	49.487
1989	50.8885
1990	44.34
1991	45.01
1992	45.71
1993	46.43
1994	47.18
1995	47.95
1996	48.41
1997	48.88
1998	49.36
1999	49.85
2000	50.36
2001	49.93
2002	49.51
2003	49.11
2004	48.72
2005	48.34
2006	47.96
2007	47.58
2008	47.22
2009	46.87
2010	46.54
2011	46.9
2012	47.27
2013	47.64
2014	48.02
2015	48.4
2016	48.79