Year	Cases per 100,000
1990	14.91
1991	14.08
1992	13.88
1993	13.2
1994	13.17
1995	12.5
1996	13.15
1997	13.61
1998	12.73
1999	13.71
2000	14.11
2001	14.44
2002	15.07
2003	15.26
2004	16.04
2005	16.33
2006	17.06
2007	17.4
2008	17.75
2009	18.64
2010	18.98
2011	19.33
2012	19.75
2013	19.68
2014	19.29
2015	18.24
2016	17.53