Year	Cases per 100,000
1990	7.96
1991	8.14
1992	8.31
1993	8.5
1994	8.69
1995	8.88
1996	9.19
1997	9.5
1998	9.83
1999	10.17
2000	10.52
2001	10.98
2002	11.46
2003	11.96
2004	12.48
2005	13.03
2006	13.46
2007	13.9
2008	14.35
2009	14.83
2010	15.32
2011	15.66
2012	16.01
2013	16.38
2014	16.75
2015	17.13
2016	17.52