Year	Cases per 100,000
1990	9.44
1991	9.67
1992	9.91
1993	10.16
1994	10.41
1995	10.68
1996	10.92
1997	11.16
1998	11.41
1999	11.67
2000	11.94
2001	12.29
2002	12.66
2003	13.05
2004	13.44
2005	13.85
2006	14.32
2007	14.81
2008	15.31
2009	15.84
2010	16.39
2011	16.75
2012	17.13
2013	17.51
2014	17.91
2015	18.31
2016	18.73