Year	Cases per 100,000
1990	37.57
1991	38.11
1992	38.68
1993	40.15
1994	40.7
1995	41.67
1996	42.21
1997	42.01
1998	42.26
1999	42.1
2000	42
2001	42.02
2002	42.41
2003	42.94
2004	42.93
2005	43.65
2006	43.67
2007	43.14
2008	42.57
2009	42.29
2010	42.19
2011	41.42
2012	40.79
2013	40.1
2014	38.63
2015	37.8
2016	37.09