Year	Cases per 100,000
1990	19.1
1991	19.53
1992	19.89
1993	20.45
1994	21.06
1995	21.65
1996	21.99
1997	22.31
1998	22.44
1999	22.79
2000	23.45
2001	23.89
2002	24.42
2003	24.73
2004	25.26
2005	25.75
2006	25.76
2007	25.94
2008	26.44
2009	27.22
2010	27.83
2011	28.02
2012	28.37
2013	28.66
2014	29.01
2015	29.1
2016	29.15