Year	Cases per 100,000
1990	13.98
1991	14.13
1992	14.29
1993	14.45
1994	14.62
1995	14.79
1996	14.92
1997	15.06
1998	15.2
1999	15.34
2000	15.49
2001	15.94
2002	16.41
2003	16.9
2004	17.4
2005	17.93
2006	18.42
2007	18.93
2008	19.46
2009	20.01
2010	20.58
2011	20.89
2012	21.21
2013	21.54
2014	21.88
2015	22.22
2016	22.58