Year	Cases per 100,000
1990	13.27
1991	13.58
1992	13.93
1993	14.32
1994	14.75
1995	15.29
1996	15.76
1997	16.29
1998	16.86
1999	17.47
2000	18.16
2001	18.76
2002	19.42
2003	20.13
2004	20.88
2005	21.71
2006	22.06
2007	22.41
2008	22.78
2009	23.17
2010	23.58
2011	23.57
2012	23.58
2013	23.59
2014	23.6
2015	23.61
2016	23.65