Year	% of female labor force (national estimate)
1973	12.3
1975	27.04
1977	25.67
1979	21.15
1986	14.92
1988	14.2
1989	12.39
1990	7.88
1991	12.1
1992	15.81
1993	13.03
1994	15.22
1995	11.72
1996	14.67
1997	11.34
1998	9.97
1999	9.72
2001	7.02
2003	11.84
2005	11.18
2006	8.02
2007	9.07
2008	9.25
2009	14.04
2011	15.31
2012	13.97
2013	16.26
2014	14.6
2015	12.9
2016	14.5
2017	10.9
2018	10