Year	Percent of total labor force
1982	20.563
1983	19.721
1984	17.623
1985	15.306
1986	10.941
1987	5.963
1988	3.888
1989	3.6
1990	2.824
1991	2.732
1992	3.342
1993	3.939
1994	4.492
1995	5.116
1996	5.785
1997	6.561
1998	6.888
1999	7.698
2000	6.501
2001	6.8
2002	7.2
2003	7.698
2004	8.395
2005	9.567
2006	9.081
2007	8.522
2008	7.222
2009	7.328
2010	7.8
2011	7.9
2012	8.1
2013	8
2014	7.8
2015	7.9
2016	7.3
2017	7.1
2018	6.9
2019	6.9
2020	6.9
2021	6.8
2022	6.8
2023	6.8
2024	6.7