Year	Cases per 100,000
1990	5.03
1991	5.15
1992	5.27
1993	5.39
1994	5.51
1995	5.65
1996	5.49
1997	5.34
1998	5.2
1999	5.06
2000	4.93
2001	5.03
2002	5.13
2003	5.24
2004	5.36
2005	5.48
2006	5.52
2007	5.56
2008	5.6
2009	5.65
2010	5.7
2011	5.72
2012	5.74
2013	5.77
2014	5.79
2015	5.81
2016	5.84