Year	Cases per 100,000
1990	12.03
1991	12.37
1992	12.73
1993	13.1
1994	13.49
1995	13.89
1996	13.98
1997	14.08
1998	14.19
1999	14.3
2000	14.43
2001	14.37
2002	14.31
2003	14.25
2004	14.2
2005	14.14
2006	14.32
2007	14.49
2008	14.67
2009	14.86
2010	15.04
2011	15.49
2012	15.96
2013	16.45
2014	16.95
2015	17.47
2016	18