Year	Cases per 100,000
1963	9.91
1964	10.01
1965	14.09
1966	13.44
1967	11.27
1968	13.51
1969	12.15
1970	12.22
1971	13.0775
1972	14.105
1973	14.6925
1974	17.33
1975	18.4575
1976	17.875
1977	20.9925
1978	21.4
1979	21.4575
1980	22.505
1981	24.1925
1982	24.04
1983	26.7975
1984	25.845
1985	27.9825
1986	27.41
1987	29.3475
1988	29.675
1989	28.9725
1990	31.36
1991	31.95
1992	32.56
1993	33.18
1994	33.81
1995	34.47
1996	34.7
1997	34.94
1998	35.19
1999	35.44
2000	35.7
2001	35.94
2002	36.19
2003	36.45
2004	36.71
2005	36.99
2006	36.57
2007	36.15
2008	35.74
2009	35.34
2010	34.95
2011	34.4
2012	33.85
2013	33.32
2014	32.8
2015	32.29
2016	31.8