Year	Cases per 100,000
1953	31.76
1954	31.36
1955	29.8
1956	29.34
1957	30.52
1958	31.54
1959	34.61
1960	31.82
1961	35.6
1962	32.18
1963	34.01
1964	32.28
1965	33.6
1966	32.02
1967	33.81
1968	34.83
1969	35.39
1970	34.41
1971	34.056
1972	35.322
1973	36.198
1974	36.674
1975	37.42
1976	38.756
1977	37.812
1978	38.658
1979	37.534
1980	36.62
1981	38.676
1982	37.132
1983	38.708
1984	38.504
1985	38.8
1986	38.746
1987	38.142
1988	40.298
1989	37.934
1990	37.64
1991	39.93
1992	42.38
1993	45
1994	47.78
1995	50.76
1996	52.11
1997	53.51
1998	54.94
1999	56.42
2000	57.95
2001	58.6
2002	59.27
2003	59.94
2004	60.63
2005	61.33
2006	61.06
2007	60.8
2008	60.54
2009	60.29
2010	60.05
2011	59.74
2012	59.44
2013	59.14
2014	58.85
2015	58.56
2016	58.3