Year per 100,000 female population 2000 3.7 2001 3.3 2002 3.5 2003 3.3 2004 3.1 2005 3.5 2006 3.4 2007 3.4 2008 3.2 2009 3.1 2010 3 2011 2.9 2012 2.8 2013 2.7 2014 2.7 2015 2.6 2016 2.7 2017 2.7 2018 2.7 2019 2.6