Year	Cases per 100,000
2000	47
2001	46
2002	43
2003	40
2004	36
2005	38
2006	33
2007	33
2008	39
2009	37
2010	31
2011	27
2012	33
2014	19
2015	21
2016	19
2017	22
2018	27
2019	30
2020	30