Year	% of female labor force (national estimate)
1991	0.07
1992	0.8
1993	1.8
1994	2.6
1995	3.5
1996	5
1997	3.6
1998	3
1999	2.6
2000	2.4
2001	2.6
2002	3.5
2003	3.9
2004	2.4
2005	2
2006	1.5
2007	1.2
2008	0.9
2009	4.6
2011	0.6
2012	0.5
2013	0.4
2014	0.4
2015	0.7
2016	4.194
2017	4.044
2018	3.562
2019	3.2
2020	3.301
2021	3.068
2022	2.905