Year	per 100,000 population
2000	0.5
2001	0.6
2002	0.7
2003	0.7
2004	0.9
2005	0.8
2006	1
2007	1.2
2008	1.1
2009	1.1
2010	1.1
2011	1
2012	0.4
2013	0.6
2014	0.5
2015	0.5
2016	0.4
2017	0.4
2018	0.6
2019	0.4