Year	Cases per 100,000
1990	27.41
1991	28.43
1992	29.52
1993	30.65
1994	31.85
1995	33.11
1996	34.01
1997	34.95
1998	35.93
1999	36.94
2000	38
2001	39.01
2002	40.07
2003	41.18
2004	42.34
2005	43.56
2006	44.95
2007	46.38
2008	47.9
2009	49.5
2010	51.19
2011	51.74
2012	52.32
2013	52.91
2014	53.52
2015	54.14
2016	54.79