Year	Cases per 100,000
1990	37.42
1991	39.48
1992	41.68
1993	44.01
1994	46.48
1995	49.1
1996	50.51
1997	51.96
1998	53.46
1999	55.01
2000	56.6
2001	56.07
2002	55.55
2003	55.04
2004	54.53
2005	54.03
2006	53.33
2007	52.62
2008	51.94
2009	51.26
2010	50.6
2011	50
2012	49.42
2013	48.85
2014	48.28
2015	47.73
2016	47.19