Year	Cases per 100,000
1990	11.59
1991	11.76
1992	11.94
1993	12.13
1994	12.31
1995	12.51
1996	12.8
1997	13.11
1998	13.43
1999	13.75
2000	14.1
2001	14.65
2002	15.23
2003	15.84
2004	16.47
2005	17.14
2006	17.49
2007	17.83
2008	18.2
2009	18.57
2010	18.96
2011	19.55
2012	20.18
2013	20.82
2014	21.49
2015	22.19
2016	22.92