Year	Percent of total labor force
1985	11.058
1986	11.682
1987	11.062
1988	9.402
1989	9.129
1990	8.4
1991	10.5
1992	9.8
1993	9.275
1994	9.475
1995	9.525
1996	8.525
1997	8.675
1998	10.05
1999	9.725
2000	11.175
2001	11.125
2002	11.4
2003	11.4
2004	11.825
2005	11.35
2006	7.95
2007	7.325
2008	7.4
2009	7.475
2010	7.325
2011	7.025
2012	6.975
2013	7.075
2014	6.8
2015	6.275
2016	5.475
2017	5.725
2018	5.325
2019	5.475
2020	5.42
2021	5.366
2022	5.312
2023	5.259
2024	5.259