Year	Cases per 100,000
1990	20.69
1991	20.79
1992	20.92
1993	21.06
1994	21.21
1995	21.39
1996	21.85
1997	22.36
1998	22.89
1999	23.44
2000	24.04
2001	24.49
2002	24.97
2003	25.46
2004	25.97
2005	26.5
2006	26.05
2007	25.63
2008	25.23
2009	24.86
2010	24.5
2011	25.32
2012	26.18
2013	27.09
2014	28.05
2015	29.06
2016	30.13