Year	Cases per 100,000
1990	29.63
1991	29.66
1992	30.15
1993	30.33
1994	31.24
1995	31.57
1996	32.22
1997	33.73
1998	35.18
1999	36.72
2000	38.24
2001	39.63
2002	41.65
2003	43.33
2004	45.49
2005	47.11
2006	48.31
2007	49.05
2008	49.62
2009	49.93
2010	50.55
2011	50.55
2012	50.61
2013	50.67
2014	50.59
2015	50.22
2016	50.01