Year	Cases per 100,000
1990	5.9
1991	5.99
1992	6.08
1993	6.15
1994	6.21
1995	6.27
1996	6.3
1997	6.38
1998	6.5
1999	6.69
2000	6.9
2001	6.97
2002	7.03
2003	7.08
2004	7.16
2005	7.23
2006	7.08
2007	6.94
2008	6.8
2009	6.69
2010	6.58
2011	6.54
2012	6.51
2013	6.5
2014	6.49
2015	6.49
2016	6.48