Year	Cases per 100,000
1990	10.31
1991	10.35
1992	10.41
1993	10.46
1994	10.51
1995	10.57
1996	10.54
1997	10.51
1998	10.48
1999	10.44
2000	10.42
2001	10.48
2002	10.55
2003	10.62
2004	10.69
2005	10.76
2006	10.96
2007	11.16
2008	11.36
2009	11.57
2010	11.79
2011	12.04
2012	12.3
2013	12.57
2014	12.84
2015	13.11
2016	13.4