Year	Cases per 100,000
1990	10.57
1991	10.88
1992	11.21
1993	11.56
1994	11.93
1995	12.32
1996	12.64
1997	12.98
1998	13.33
1999	13.7
2000	14.08
2001	15.13
2002	16.27
2003	17.51
2004	18.87
2005	20.35
2006	21.73
2007	23.22
2008	24.83
2009	26.57
2010	28.45
2011	29.27
2012	30.12
2013	31
2014	31.91
2015	32.85
2016	33.82