Year	Cases per 100,000
1990	15.02
1991	15.13
1992	15.25
1993	15.36
1994	15.48
1995	15.6
1996	15.97
1997	16.35
1998	16.75
1999	17.15
2000	17.57
2001	18.29
2002	19.04
2003	19.83
2004	20.65
2005	21.51
2006	22.49
2007	23.51
2008	24.59
2009	25.72
2010	26.91
2011	27.56
2012	28.23
2013	28.92
2014	29.63
2015	30.36
2016	31.12