Year	per 100,000 female population
2000	2.3
2001	2.2
2002	2.1
2003	2
2004	2
2005	1.9
2006	1.8
2007	1.9
2008	1.9
2009	1.9
2010	1.9
2011	1.9
2012	1.8
2013	1.8
2014	1.8
2015	1.7
2016	1.7
2017	1.8
2018	1.6
2019	1.7