Year	Cases per 100,000
1990	37.78
1991	39.12
1992	40.51
1993	41.96
1994	43.47
1995	45.04
1996	43.86
1997	42.73
1998	41.62
1999	40.56
2000	39.52
2001	40.08
2002	40.65
2003	41.23
2004	41.83
2005	42.45
2006	42.29
2007	42.13
2008	41.99
2009	41.84
2010	41.71
2011	41.65
2012	41.59
2013	41.54
2014	41.48
2015	41.43
2016	41.38