Year	Cases per 100,000
1990	7.09
1991	7.63
1992	8.06
1993	8.61
1994	9.18
1995	9.84
1996	10.4
1997	10.9
1998	11.46
1999	12
2000	12.71
2001	13.23
2002	13.72
2003	14.27
2004	14.3
2005	14.32
2006	14.21
2007	13.97
2008	13.59
2009	13.26
2010	13.02
2011	12.71
2012	12.21
2013	11.8
2014	11.43
2015	11.05
2016	10.75