Year	Cases per 100,000
1990	41.53
1991	41.37
1992	41.17
1993	40.83
1994	41.1
1995	41.11
1996	43.05
1997	40.65
1998	40.61
1999	39.62
2000	39.93
2001	40.33
2002	39.68
2003	39.87
2004	39.06
2005	38.32
2006	38.28
2007	38.49
2008	38.27
2009	37.76
2010	37.37
2011	37
2012	36.66
2013	36.01
2014	35.39
2015	34.8
2016	34.26