Year	Percent of total labor force (Units)
1980	11.502
1981	10.291
1982	19.814
1983	20.999
1984	17.515
1985	14.975
1986	12.299
1987	10.984
1988	9.875
1989	7.980
1990	7.750
1991	8.217
1992	6.700
1993	6.500
1994	7.808
1995	7.375
1996	6.500
1997	6.108
1998	6.217
1999	10.008
2000	9.708
2001	9.867
2002	9.800
2003	9.533
2004	10.017
2005	9.300
2006	7.950
2007	7.008
2008	7.750
2009	11.053
2010	8.305
2011	7.300
2012	6.595
2013	6.082
2014	6.495
2015	6.328
2016	6.685
2017	6.965
2018	7.377
2019	7.223
2020	10.770
2021	8.862
2022	7.878
2023	8.840
2024	8.713
2025	8.081
2026	7.494
2027	7.506
2028	7.491
2029	7.500