Year	Cases per 100,000
1990	40.43
1991	40.85
1992	41.29
1993	41.73
1994	42.18
1995	42.65
1996	42.49
1997	42.36
1998	42.22
1999	42.09
2000	41.97
2001	41.46
2002	40.98
2003	40.51
2004	40.06
2005	39.62
2006	38.79
2007	37.97
2008	37.18
2009	36.42
2010	35.68
2011	36.07
2012	36.47
2013	36.88
2014	37.3
2015	37.72
2016	38.15