Year	Cases per 100,000
1990	8.1
1991	8.05
1992	8
1993	7.95
1994	7.9
1995	7.86
1996	7.79
1997	7.73
1998	7.67
1999	7.61
2000	7.56
2001	7.57
2002	7.58
2003	7.6
2004	7.61
2005	7.64
2006	7.67
2007	7.7
2008	7.74
2009	7.77
2010	7.82
2011	7.82
2012	7.84
2013	7.85
2014	7.87
2015	7.88
2016	7.9