Year	Cases per 100,000
1990	4.57
1991	4.64
1992	4.72
1993	4.79
1994	4.87
1995	4.95
1996	5.04
1997	5.13
1998	5.23
1999	5.32
2000	5.43
2001	5.43
2002	5.45
2003	5.46
2004	5.48
2005	5.49
2006	5.63
2007	5.76
2008	5.9
2009	6.05
2010	6.2
2011	6.35
2012	6.5
2013	6.66
2014	6.83
2015	7
2016	7.18