Year	Cases per 100,000
1990	92.55
1991	91.86
1992	90.66
1993	89.5
1994	88.69
1995	88.09
1996	89.5
1997	91.79
1998	93.49
1999	93.62
2000	94.63
2001	93.25
2002	91.46
2003	89.57
2004	88.63
2005	88.02
2006	87.07
2007	86.18
2008	85.55
2009	83.97
2010	82.13
2011	81.28
2012	79.72
2013	78.07
2014	76.47
2015	75.1
2016	74.54