Year	Cases per 100,000
2000	43
2001	46
2002	47
2003	51
2004	55
2005	74
2006	60
2007	57
2008	57
2009	54
2010	49
2011	44
2012	42
2013	48
2014	46
2015	40
2016	35
2017	29
2018	25
2019	21
2020	13