Year	Cases per 100,000
1990	28.15
1991	27.34
1992	27.23
1993	26.93
1994	26.64
1995	26.72
1996	26.42
1997	25.94
1998	25.68
1999	25.27
2000	25.95
2001	24.82
2002	24.57
2003	24.41
2004	25.64
2005	27.01
2006	28.17
2007	29.61
2008	30.26
2009	31.26
2010	32.82
2011	34.79
2012	37.4
2013	40.08
2014	43.56
2015	45.83
2016	46.74