Year	Cases per 100,000
1990	7.09
1991	7.17
1992	7.25
1993	7.33
1994	7.41
1995	7.5
1996	7.48
1997	7.46
1998	7.45
1999	7.43
2000	7.42
2001	7.7
2002	7.99
2003	8.29
2004	8.61
2005	8.94
2006	8.84
2007	8.75
2008	8.66
2009	8.57
2010	8.48
2011	8.39
2012	8.3
2013	8.22
2014	8.13
2015	8.05
2016	7.98