Year	Cases per 100,000
1990	32.34
1991	32.44
1992	32.55
1993	32.65
1994	32.76
1995	32.88
1996	33.1
1997	33.34
1998	33.58
1999	33.82
2000	34.07
2001	34.41
2002	34.75
2003	35.11
2004	35.46
2005	35.83
2006	36.09
2007	36.34
2008	36.6
2009	36.86
2010	37.13
2011	37.33
2012	37.54
2013	37.76
2014	37.97
2015	38.19
2016	38.41
