Year	Cases per 100,000
1990	42.23
1991	41.98
1992	41.73
1993	41.5
1994	41.26
1995	41.04
1996	40.29
1997	39.57
1998	38.86
1999	38.18
2000	37.51
2001	37.36
2002	37.22
2003	37.08
2004	36.95
2005	36.83
2006	36.68
2007	36.53
2008	36.38
2009	36.24
2010	36.11
2011	35.98
2012	35.86
2013	35.74
2014	35.62
2015	35.51
2016	35.4