Year	Cases per 100,000
1990	14.56
1991	14.99
1992	15.46
1993	15.93
1994	16.43
1995	16.95
1996	17.11
1997	17.28
1998	17.45
1999	17.63
2000	17.82
2001	17.08
2002	16.37
2003	15.7
2004	15.05
2005	14.44
2006	14.14
2007	13.83
2008	13.54
2009	13.25
2010	12.98
2011	13.07
2012	13.18
2013	13.29
2014	13.4
2015	13.51
2016	13.62