Year	Cases per 100,000
1980	10.36455
1981	7.93909
1982	10.24364
1983	8.67818
1984	10.69273
1985	12.13727
1986	10.94182
1987	12.02636
1988	12.72091
1989	12.98545
1990	14.79
1991	14.97
1992	15.16
1993	15.35
1994	15.55
1995	15.75
1996	15.91
1997	16.07
1998	16.24
1999	16.41
2000	16.58
2001	16.99
2002	17.42
2003	17.87
2004	18.32
2005	18.8
2006	19.1
2007	19.4
2008	19.72
2009	20.05
2010	20.39
2011	20.93
2012	21.47
2013	22.04
2014	22.62
2015	23.21
2016	23.83