Year	Cases per 100,000
1953	22.87
1954	23.1
1955	26.58
1956	23.37
1957	26.77
1958	24.69
1959	26.51
1960	26.45
1961	27.47
1962	27.45
1963	29.15
1964	33.13
1965	31.59
1966	29.94
1967	32.34
1968	32.97
1969	32.72
1970	35.33
1971	36.77
1972	38.68
1973	44.44
1974	48.85
1975	51.1
1976	54.64
1977	58.82
1978	61.91
1979	62.2
1980	65.24
1981	71.15
1982	73.52
1983	75.13
1984	78.71
1985	81.36
1986	83.5
1987	87.31
1988	89.18
1989	93.85
1990	97.54
1991	100.19
1992	102.94
1993	105.82
1994	108.81
1995	111.92
1996	115.6
1997	119.52
1998	123.73
1999	128.25
2000	133.07
2001	135.55
2002	138.1
2003	140.76
2004	143.52
2005	146.38
2006	147.63
2007	148.94
2008	150.27
2009	151.64
2010	153.03
2011	153.91
2012	154.79
2013	155.68
2014	156.59
2015	157.51
2016	158.42