Year	Percent of total labor force (Units)
1980	5.287
1981	7.133
1982	7.602
1983	8.375
1984	7.925
1985	6.617
1986	4.983
1987	5.000
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	4.800
2006	3.900
2007	3.775
2008	3.700
2009	6.442
2010	7.750
2011	7.758
2012	7.792
2013	7.367
2014	6.917
2015	6.267
2016	5.983
2017	5.825
2018	5.125
2019	5.000
2020	5.625
2021	5.092
2022	4.475
2023	4.892
2024	4.892
2025	4.900
2026	4.900
2027	4.900
2028	4.900
2029	4.900