Year	Cases per 100,000
1953	12.72
1954	13.88
1955	12.6
1956	12.62
1957	15.96
1958	17.52
1959	19.02
1960	16.33
1961	16.84
1962	17.92
1963	16.52
1964	18.71
1965	18.53
1966	20.41
1967	21.43
1968	23.71
1969	25.21
1970	23.46
1971	30.1285
1972	34.327
1973	36.5655
1974	36.474
1975	43.9825
1976	43.301
1977	54.1995
1978	53.368
1979	57.8665
1980	61.785
1981	64.2335
1982	67.552
1983	69.9405
1984	71.919
1985	76.2375
1986	80.366
1987	84.0745
1988	85.723
1989	89.0515
1990	91.42
1991	94.73
1992	98.21
1993	101.86
1994	105.71
1995	109.73
1996	114.27
1997	119.14
1998	124.39
1999	130.04
2000	136.12
2001	137.54
2002	139.04
2003	140.65
2004	142.36
2005	144.17
2006	143.1
2007	142.06
2008	141.03
2009	140.02
2010	139.04
2011	138.85
2012	138.67
2013	138.5
2014	138.34
2015	138.19
2016	138.06