Year	Percent of total labor force
1983	12.5
1984	12.5
1985	12.2
1986	11
1987	8.2
1988	6.2
1989	4.636
1990	4.8
1991	4.4
1992	4.9
1993	5.4
1994	5.4
1995	4.9
1996	5.2
1997	6.2
1998	6.6
1999	7.1
2000	6.758
2001	7.617
2002	7.025
2003	7.567
2004	7.217
2005	6.942
2006	6.817
2007	6.467
2008	5.975
2009	6.883
2010	6.867
2011	6.408
2012	6.192
2013	6.1
2014	5.733
2015	5.367
2016	4.7
2017	4.008
2018	4
2019	4.1
2020	4.3
2021	4.5
2022	4.7
2023	4.74
2024	4.74