Year	per 100,000 female population
2000	5.1
2001	4.6
2002	4
2003	3.7
2004	3.4
2005	3.1
2006	3
2007	3.2
2008	3.6
2009	3.3
2010	2.9
2011	2.9
2012	2.4
2013	2.2
2014	2
2015	2
2016	2.1
2017	2
2018	1.9
2019	2