Year	Cases per 100,000
1990	20.64
1991	21.26
1992	21.91
1993	22.58
1994	23.29
1995	24.03
1996	24.58
1997	25.17
1998	25.77
1999	26.4
2000	27.06
2001	27.36
2002	27.67
2003	27.99
2004	28.32
2005	28.66
2006	29.24
2007	29.83
2008	30.44
2009	31.07
2010	31.74
2011	32.51
2012	33.31
2013	34.13
2014	34.98
2015	35.86
2016	36.78