Year	Cases per 100,000
1990	18.12
1991	18.62
1992	19.15
1993	19.69
1994	20.25
1995	20.85
1996	21.28
1997	21.73
1998	22.2
1999	22.69
2000	23.2
2001	23.45
2002	23.72
2003	24
2004	24.28
2005	24.57
2006	24.7
2007	24.81
2008	24.94
2009	25.07
2010	25.2
2011	25.49
2012	25.8
2013	26.1
2014	26.42
2015	26.73
2016	27.07