Year	Cases per 100,000
1990	19.29
1991	19.85
1992	20.45
1993	21.07
1994	21.71
1995	22.38
1996	22.75
1997	23.14
1998	23.53
1999	23.93
2000	24.35
2001	24.43
2002	24.51
2003	24.6
2004	24.69
2005	24.79
2006	24.72
2007	24.66
2008	24.59
2009	24.53
2010	24.48
2011	24.53
2012	24.6
2013	24.67
2014	24.73
2015	24.8
2016	24.87