Year	Cases per 100,000
1983	14.7475
1984	14.765
1985	15.3825
1986	16.56
1987	17.5075
1988	18.205
1989	19.1625
1990	19.68
1991	19.68
1992	19.53
1993	19.34
1994	19.1
1995	18.69
1996	18.91
1997	18.68
1998	18.51
1999	18.14
2000	17.72
2001	17.38
2002	16.9
2003	16.35
2004	16.11
2005	15.94
2006	15.77
2007	15.51
2008	15.27
2009	15.05
2010	14.84
2011	14.67
2012	14.48
2013	14.4
2014	14.43
2015	14.58
2016	14.6