Year	Cases per 100,000
1990	29.1
1991	29.54
1992	30.03
1993	30.57
1994	31.15
1995	31.81
1996	32.21
1997	32.66
1998	33.14
1999	33.66
2000	34.24
2001	34.69
2002	35.17
2003	35.68
2004	36.22
2005	36.79
2006	37.12
2007	37.47
2008	37.83
2009	38.21
2010	38.61
2011	38.9
2012	39.2
2013	39.51
2014	39.82
2015	40.13
2016	40.46