Year	Percent of total labor force (Units)
1980	5.288
1981	5.743
1982	6.076
1983	6.147
1984	5.928
1985	6.049
1986	6.665
1987	4.900
1988	4.208
1989	3.108
1990	3.200
1991	6.700
1992	11.800
1993	16.500
1994	16.700
1995	15.500
1996	14.600
1997	12.700
1998	11.500
1999	10.275
2000	9.875
2001	9.200
2002	9.175
2003	9.075
2004	8.875
2005	8.475
2006	7.775
2007	6.950
2008	6.425
2009	8.325
2010	8.500
2011	7.900
2012	7.800
2013	8.325
2014	8.825
2015	9.575
2016	8.975
2017	8.825
2018	7.425
2019	6.725
2020	7.767
2021	7.625
2022	6.767
2023	7.208
2024	7.599
2025	7.419
2026	7.282
2027	7.267
2028	7.189
2029	7.086