Year	Cases per 100,000
1990	36.55
1991	37.8
1992	39.14
1993	40.57
1994	42.1
1995	43.73
1996	41.29
1997	39.08
1998	37.06
1999	35.23
2000	33.57
2001	33.92
2002	34.33
2003	34.77
2004	35.27
2005	35.81
2006	36.18
2007	36.57
2008	36.99
2009	37.44
2010	37.92
2011	37.62
2012	37.33
2013	37.05
2014	36.77
2015	36.51
2016	36.25