Year	Cases per 100,000
1990	16.42
1991	16.73
1992	17.05
1993	17.37
1994	17.71
1995	18.06
1996	18.37
1997	18.7
1998	19.04
1999	19.39
2000	19.76
2001	19.61
2002	19.48
2003	19.36
2004	19.24
2005	19.13
2006	19.46
2007	19.8
2008	20.15
2009	20.51
2010	20.88
2011	21.4
2012	21.94
2013	22.49
2014	23.07
2015	23.66
2016	24.28