Year	per 100,000 population
2000	3.5
2001	2.6
2002	1.7
2003	1.9
2004	1.5
2005	2
2006	1.3
2007	1.4
2008	0.6
2009	0.9
2010	0.9
2011	1.2
2012	1.2
2013	0.6
2014	0.7
2015	0.5
2016	0.9
2017	0.6
2018	0.8
2019	0.6