Year	Cases per 100,000
1990	33.8
1991	34.73
1992	35.7
1993	36.7
1994	37.74
1995	38.82
1996	38.06
1997	37.34
1998	36.64
1999	35.96
2000	35.31
2001	36.82
2002	38.41
2003	40.06
2004	41.8
2005	43.62
2006	43.8
2007	43.97
2008	44.15
2009	44.33
2010	44.53
2011	44.13
2012	43.73
2013	43.35
2014	42.96
2015	42.59
2016	42.23