Year	Cases per 100,000
1963	24.08
1964	21.05
1965	28.42
1966	24.36
1967	27.68
1968	25.88
1969	28.53
1970	31.02
1971	30.037
1972	34.914
1973	35.831
1974	40.168
1975	39.495
1976	35.452
1977	42.969
1978	42.456
1979	45.433
1980	48.83
1981	48.577
1982	50.304
1983	48.111
1984	50.098
1985	56.865
1986	58.602
1987	60.939
1988	62.346
1989	63.033
1990	65.41
1991	66.55
1992	67.74
1993	68.97
1994	70.23
1995	71.55
1996	72.48
1997	73.46
1998	74.47
1999	75.51
2000	76.59
2001	76.94
2002	77.31
2003	77.7
2004	78.1
2005	78.54
2006	77.04
2007	75.58
2008	74.18
2009	72.83
2010	71.53
2011	70.49
2012	69.48
2013	68.5
2014	67.54
2015	66.6
2016	65.71