Year	per 100,000 female population
2000	2.7
2001	2.7
2002	2.6
2003	2.6
2004	2.4
2005	2.3
2006	2.3
2007	2.1
2008	2
2009	1.8
2010	1.8
2011	1.7
2012	1.6
2013	1.5
2014	1.4
2015	1.3
2016	1.2
2017	1.2
2018	1.1
2019	1