Year	Cases per 100,000
1990	29.86
1991	31.4
1992	33.09
1993	34.91
1994	36.89
1995	39.05
1996	40.03
1997	41.06
1998	42.13
1999	43.24
2000	44.39
2001	44.93
2002	45.48
2003	46.06
2004	46.66
2005	47.29
2006	46.81
2007	46.35
2008	45.93
2009	45.55
2010	45.2
2011	44.31
2012	43.46
2013	42.63
2014	41.82
2015	41.05
2016	40.3