Year	Cases per 100,000
2000	32
2001	31
2002	31
2003	28
2004	30
2005	27
2006	25
2007	26
2008	23
2009	19
2010	18
2011	24
2012	21
2013	21
2014	22
2015	22
2016	24
2017	23
2018	23
2019	26
2020	21