Year	Cases per 100,000
1990	11.49
1991	11.9
1992	12.33
1993	12.78
1994	13.25
1995	13.74
1996	14.08
1997	14.43
1998	14.79
1999	15.16
2000	15.55
2001	15.65
2002	15.75
2003	15.85
2004	15.95
2005	16.06
2006	16.34
2007	16.62
2008	16.91
2009	17.2
2010	17.5
2011	17.85
2012	18.2
2013	18.56
2014	18.93
2015	19.3
2016	19.69