Year	Cases per 100,000
1990	6.78
1991	6.93
1992	7.08
1993	7.23
1994	7.39
1995	7.55
1996	7.27
1997	7.02
1998	6.77
1999	6.55
2000	6.34
2001	6.32
2002	6.3
2003	6.28
2004	6.27
2005	6.25
2006	6.37
2007	6.49
2008	6.61
2009	6.73
2010	6.86
2011	6.94
2012	7.02
2013	7.1
2014	7.18
2015	7.26
2016	7.35