Year	Cases per 100,000
1990	23.93
1991	24.07
1992	24.3
1993	24.58
1994	24.96
1995	26.18
1996	26.78
1997	27.53
1998	28.44
1999	29.57
2000	31.58
2001	32.54
2002	33.63
2003	34.86
2004	36.27
2005	37.94
2006	38.69
2007	39.47
2008	40.29
2009	41.15
2010	42.06
2011	42.42
2012	42.8
2013	43.19
2014	43.59
2015	44
2016	44.43