Year	Percent of total labor force
1980	5.751
1981	5.925
1982	6.281
1983	5.57
1984	6.135
1985	4.565
1986	2.012
1987	3.9
1988	2.575
1989	1.775
1990	1.775
1991	1.75
1992	1.8
1993	1.7
1994	1.725
1995	1.75
1996	1.65
1997	1.425
1998	2.5
1999	2.8
2000	2.675
2001	2.65
2002	3.55
2003	3.95
2004	3.35
2005	3.125
2006	2.65
2007	2.125
2008	2.225
2009	3.025
2010	2.175
2011	2.025
2012	1.95
2013	1.9
2014	1.95
2015	1.9
2016	2.075
2017	2.175
2018	2.125
2019	2
2020	2
2021	1.9
2022	1.9
2023	1.9
2024	1.9