Year	Cases per 100,000
1990	16.21
1991	16.58
1992	16.97
1993	17.36
1994	17.76
1995	18.19
1996	18.58
1997	19
1998	19.42
1999	19.86
2000	20.31
2001	20.86
2002	21.43
2003	22.02
2004	22.63
2005	23.26
2006	23.6
2007	23.94
2008	24.29
2009	24.66
2010	25.04
2011	25.86
2012	26.72
2013	27.61
2014	28.53
2015	29.49
2016	30.48