Year	Cases per 100,000
1990	80.74
1991	80.19
1992	79.35
1993	78.52
1994	77.84
1995	77.03
1996	76.38
1997	75.63
1998	75.14
1999	74.05
2000	73.91
2001	73.03
2002	72.89
2003	72.49
2004	71.68
2005	71.19
2006	71.22
2007	71.2
2008	70.89
2009	70.29
2010	69.85
2011	69.7
2012	69.02
2013	68.59
2014	68.56
2015	67.78
2016	67