Year	Cases per 100,000
1990	14.85
1991	14.97
1992	15.12
1993	15.29
1994	15.5
1995	15.86
1996	16.36
1997	16.98
1998	17.76
1999	18.76
2000	21.05
2001	21.93
2002	22.94
2003	24.08
2004	25.39
2005	26.92
2006	27.25
2007	27.58
2008	27.94
2009	28.3
2010	28.68
2011	28.64
2012	28.62
2013	28.6
2014	28.58
2015	28.56
2016	28.56