Year	Cases per 100,000
1990	13.75
1991	14.12
1992	14.51
1993	14.91
1994	15.32
1995	15.75
1996	16.03
1997	16.33
1998	16.63
1999	16.94
2000	17.26
2001	17.53
2002	17.81
2003	18.1
2004	18.39
2005	18.69
2006	19.02
2007	19.34
2008	19.68
2009	20.02
2010	20.37
2011	20.45
2012	20.53
2013	20.62
2014	20.7
2015	20.79
2016	20.88