Year	Cases per 100,000
1990	17.52
1991	18.73
1992	20.05
1993	21.48
1994	23.02
1995	24.69
1996	26.14
1997	27.7
1998	29.36
1999	31.15
2000	33.07
2001	33.81
2002	34.58
2003	35.37
2004	36.18
2005	37.02
2006	37.32
2007	37.62
2008	37.93
2009	38.25
2010	38.59
2011	39.07
2012	39.58
2013	40.08
2014	40.6
2015	41.13
2016	41.67