Year	Cases per 100,000
1990	11.42
1991	12.04
1992	12.71
1993	13.43
1994	14.19
1995	15
1996	15.35
1997	15.71
1998	16.08
1999	16.46
2000	16.86
2001	17.54
2002	18.25
2003	19
2004	19.78
2005	20.6
2006	21.03
2007	21.46
2008	21.92
2009	22.39
2010	22.87
2011	23.09
2012	23.32
2013	23.55
2014	23.78
2015	24.01
2016	24.26