Year	Cases per 100,000
1990	14.73
1991	13.68
1992	12.76
1993	12.1
1994	11.51
1995	11.42
1996	11.09
1997	10.78
1998	11.23
1999	11.65
2000	12
2001	12.52
2002	13.29
2003	13.67
2004	14.53
2005	14.07
2006	13.8
2007	13.34
2008	13.51
2009	13.75
2010	13.41
2011	12.9
2012	12.43
2013	12.01
2014	12.14
2015	11.84
2016	11.6