Year	Cases per 100,000
1990	13.85
1991	13.81
1992	13.77
1993	13.74
1994	13.7
1995	13.67
1996	13.76
1997	13.85
1998	13.95
1999	14.05
2000	14.16
2001	14.6
2002	15.06
2003	15.55
2004	16.05
2005	16.57
2006	17.07
2007	17.59
2008	18.13
2009	18.69
2010	19.28
2011	19
2012	18.73
2013	18.46
2014	18.2
2015	17.94
2016	17.7