Year	Cases per 100,000
1990	32.85
1991	33.27
1992	33.71
1993	34.16
1994	34.62
1995	35.1
1996	36.61
1997	38.21
1998	39.89
1999	41.65
2000	43.52
2001	48.02
2002	53.08
2003	58.76
2004	65.12
2005	72.3
2006	75.03
2007	77.84
2008	80.81
2009	83.92
2010	87.2
2011	86.09
2012	85.04
2013	84
2014	82.99
2015	81.98
2016	81.05
