Year % of female labor force (national estimate) 1991 21.14827416779715 2002 20.55415513115109 2004 20.54630766989891 2005 20.390161304245456 2006 19.575195176857516 2007 16.864974048317002 2008 17.9573163208386 2009 18.949918678167027 2010 20.534448008039632 2012 19.60737462252412 2013 19.72524270232596 2014 19.959824228552478 2015 20.166872429244616 2016 20.64191024712409 2021 18.194463477867792