Year	Cases per 100,000
1990	54.94
1991	55.62
1992	56.32
1993	57.03
1994	57.75
1995	58.49
1996	57.96
1997	57.44
1998	56.93
1999	56.42
2000	55.93
2001	55.6
2002	55.29
2003	54.97
2004	54.67
2005	54.37
2006	53.86
2007	53.36
2008	52.87
2009	52.39
2010	51.92
2011	51.72
2012	51.52
2013	51.33
2014	51.14
2015	50.95
2016	50.77