Year	Cases per 100,000
1990	7.49
1991	7.34
1992	7.19
1993	7.02
1994	7.13
1995	7.24
1996	7.48
1997	7.71
1998	7.73
1999	7.92
2000	7.99
2001	8.04
2002	8.18
2003	8.18
2004	8.33
2005	8.52
2006	8.6
2007	8.52
2008	8.45
2009	8.4
2010	8.16
2011	7.96
2012	7.8
2013	7.67
2014	7.55
2015	7.45
2016	7.37