Year	% of female labor force (national estimate)
1977	4.23
1979	4.13
1981	5.66
1982	5.87
1983	8.79
1984	10.24
1985	11.93
1986	9.91
1987	7.11
1988	6.01
1989	9.01
1990	14.02
1994	9.68
1995	12.83
1996	14.56
2001	6.39
2002	18.82
2003	20.29
2005	11.649
2006	9.386
2007	7.646
2008	6.218
2009	5.964
2010	6.951
2011	7.208
2012	7.113
2016	5.414
2017	5.838
2020	7.9