Year	Cases per 100,000
1990	10.26
1991	10.66
1992	11.18
1993	11.82
1994	12.63
1995	14.59
1996	15.28
1997	16.05
1998	16.93
1999	17.91
2000	19.06
2001	19.54
2002	20.06
2003	20.61
2004	21.19
2005	21.81
2006	22.73
2007	23.71
2008	24.77
2009	25.9
2010	27.11
2011	27.74
2012	28.4
2013	29.09
2014	29.8
2015	30.53
2016	31.3