Year	per 100,000 female population
2000	3.5
2001	3.8
2002	3.9
2003	3.9
2004	4
2005	4
2006	3.9
2007	3.5
2008	3.3
2009	3.5
2010	3.2
2011	3
2012	2.9
2013	2.9
2014	2.9
2015	2.9
2016	2.8
2017	2.7
2018	2.6
2019	2.6