Year	Cases per 100,000
1990	17.15
1991	17.91
1992	18.75
1993	19.68
1994	20.71
1995	21.86
1996	22.46
1997	23.1
1998	23.77
1999	24.47
2000	25.21
2001	25.59
2002	25.97
2003	26.37
2004	26.77
2005	27.19
2006	27.69
2007	28.2
2008	28.74
2009	29.3
2010	29.89
2011	30.33
2012	30.79
2013	31.25
2014	31.73
2015	32.22
2016	32.72