Year	Cases per 100,000
1990	22.23
1991	22.6
1992	22.99
1993	23.38
1994	23.78
1995	24.19
1996	25.12
1997	26.09
1998	27.11
1999	28.16
2000	29.27
2001	30.26
2002	31.28
2003	32.35
2004	33.46
2005	34.61
2006	35.31
2007	36.03
2008	36.76
2009	37.52
2010	38.29
2011	38.33
2012	38.38
2013	38.43
2014	38.48
2015	38.54
2016	38.6