Year	% of female labor force (national estimate)
1971	2.7
1972	3.3
1973	3.9
1974	4.7
1975	7.7
1976	10.5
1977	10.8
1978	13.1
1979	12.76
1980	15
1981	18
1982	18.6
1983	17.796
1984	18.284
1985	17.839
1986	17.931
1987	17.6
1988	15.177
1989	12.993
1990	11.427
1991	10.641
1992	9.497
1993	10.816
1994	12.431
1995	12.21
1996	12.412
1997	11.534
1998	11.702
1999	10.214
2000	8.279
2001	6.921
2002	7.797
2003	7.995
2004	8.28
2005	9.507
2006	9.309
2007	8.444
2008	7.597
2009	8.106
2010	8.516
2011	7.18
2012	7.41
2013	8.171
2014	7.941
2015	7.769
2016	7.561
2017	7.052
2018	5.562
2019	4.942
2020	5.352
2021	5.837
2022	5.257
2023	5.05