Year	Cases per 100,000
1990	23.13
1991	23.45
1992	23.8
1993	24.16
1994	24.53
1995	24.93
1996	25.42
1997	25.95
1998	26.49
1999	27.05
2000	27.64
2001	28.27
2002	28.93
2003	29.61
2004	30.32
2005	31.07
2006	31.43
2007	31.77
2008	32.14
2009	32.52
2010	32.92
2011	33.16
2012	33.43
2013	33.7
2014	33.98
2015	34.26
2016	34.57