Year	Cases per 100,000
1990	19.45
1991	19.82
1992	20.21
1993	20.6
1994	21.01
1995	21.43
1996	21.85
1997	22.29
1998	22.74
1999	23.2
2000	23.69
2001	24.21
2002	24.75
2003	25.31
2004	25.89
2005	26.49
2006	26.99
2007	27.51
2008	28.05
2009	28.6
2010	29.17
2011	29.86
2012	30.57
2013	31.31
2014	32.07
2015	32.86
2016	33.67