Year	per 100,000 female population
2000	4.2
2001	4
2002	4
2003	4.1
2004	4.2
2005	4.2
2006	4.1
2007	4
2008	4.1
2009	4
2010	3.9
2011	3.9
2012	3.9
2013	3.9
2014	3.9
2015	3.9
2016	3.9
2017	3.9
2018	3.8
2019	3.8