Year	per 100,000 population
2000	1.9
2001	1.9
2002	1.3
2003	1.3
2004	1.7
2005	1.3
2006	0.5
2007	0.4
2008	0.3
2009	0
2010	0.2
2011	0.2
2012	0
2013	0
2014	0.4
2015	0.4
2016	0.5
2017	0
2018	0.4
2019	0.4