Year	% of female labor force (national estimate)
1971	1.2
1972	1.5
1973	1
1974	1
1975	1.9
1976	3.1
1977	3.7
1978	3.8
1979	3.7
1980	4.8
1981	6.8
1982	7.5
1983	9.747
1984	10.01
1985	10.987
1986	10.895
1987	10.424
1988	8.628
1989	7.138
1990	6.62
1991	7.398
1992	7.413
1993	7.742
1994	7.381
1995	6.914
1996	6.314
1997	5.796
1998	5.345
1999	5.148
2000	4.86
2001	4.113
2002	4.362
2003	4.064
2004	4.19
2005	4.346
2006	4.994
2007	5.038
2008	5.156
2009	6.463
2010	6.978
2011	7.443
2012	7.637
2013	7.115
2014	6.023
2015	5.344
2016	4.715
2017	4.322
2018	4.044
2019	3.414
2020	4.155
2021	4.594
2022	3.576
2023	3.66