Year	Cases per 100,000
1990	22.54
1991	22.62
1992	22.74
1993	22.93
1994	23.09
1995	23.32
1996	23.67
1997	24.12
1998	24.51
1999	24.95
2000	25.5
2001	25.96
2002	26.45
2003	26.91
2004	27.38
2005	27.86
2006	27.85
2007	27.82
2008	27.82
2009	27.76
2010	27.68
2011	27.69
2012	27.73
2013	27.76
2014	27.77
2015	27.83
2016	27.87