Year	Cases per 100,000
1990	44.81
1991	47.13
1992	49.98
1993	53.25
1994	57.21
1995	62.22
1996	64.94
1997	67.3
1998	69.36
1999	71.04
2000	72.29
2001	71.96
2002	71.62
2003	70.63
2004	69.95
2005	69.44
2006	69
2007	68.65
2008	68.27
2009	67.94
2010	67.68
2011	67.54
2012	67.66
2013	67.54
2014	68.09
2015	68.86
2016	69.96