Year	Cases per 100,000
1990	56.25
1991	57.71
1992	59.25
1993	60.85
1994	62.51
1995	64.25
1996	65.24
1997	66.28
1998	67.36
1999	68.47
2000	69.66
2001	69.51
2002	69.42
2003	69.34
2004	69.27
2005	69.25
2006	68.69
2007	68.08
2008	67.53
2009	66.99
2010	66.54
2011	66.21
2012	65.96
2013	65.72
2014	65.47
2015	65.24
2016	65.05