Year	Cases per 100,000
1990	30.88
1991	32.43
1992	34.06
1993	35.78
1994	37.6
1995	39.51
1996	39.53
1997	39.55
1998	39.58
1999	39.62
2000	39.66
2001	39.94
2002	40.24
2003	40.54
2004	40.85
2005	41.16
2006	41.8
2007	42.44
2008	43.1
2009	43.77
2010	44.46
2011	44.06
2012	43.66
2013	43.28
2014	42.9
2015	42.53
2016	42.17