Year	Percent of total labor force
1980	5.287
1981	7.133
1982	7.602
1983	8.375
1984	7.925
1985	6.617
1986	4.983
1987	5
1988	5.658
1989	6.825
1990	7.167
1991	7.867
1992	8.608
1993	9.533
1994	7.733
1995	6.758
1996	6.317
1997	5.242
1998	4.883
1999	5.108
2000	4.317
2001	4.508
2002	4.642
2003	5.433
2004	5.517
2005	4.8
2006	3.9
2007	3.775
2008	3.458
2009	5.992
2010	7.483
2011	7.558
2012	7.542
2013	7
2014	6.533
2015	6.192
2016	6.208
2017	5.733
2018	4.958
2019	4.858
2020	4.858
2021	5.058
2022	5.158
2023	5.258
2024	5.358