Year	Cases per 100,000
1990	16.52
1991	16.64
1992	16.77
1993	16.9
1994	17.03
1995	17.18
1996	17.39
1997	17.61
1998	17.84
1999	18.07
2000	18.32
2001	18.45
2002	18.6
2003	18.75
2004	18.91
2005	19.09
2006	19.14
2007	19.17
2008	19.22
2009	19.28
2010	19.35
2011	19.37
2012	19.41
2013	19.45
2014	19.49
2015	19.52
2016	19.58