Year	Percent of total labor force (Units)
1980	1.200
1981	0.900
1982	4.200
1983	6.100
1984	5.600
1985	4.400
1986	4.300
1987	3.883
1988	3.542
1989	2.925
1990	2.742
1991	2.692
1992	2.830
1993	3.430
1994	3.700
1995	6.230
1996	5.450
1997	3.730
1998	3.160
1999	2.500
2000	2.200
2001	2.768
2002	2.978
2003	3.400
2004	3.919
2005	3.478
2006	3.528
2007	3.611
2008	3.888
2009	5.330
2010	5.273
2011	5.189
2012	4.928
2013	4.938
2014	4.833
2015	4.346
2016	3.874
2017	3.420
2018	3.321
2019	3.489
2020	4.409
2021	4.140
2022	3.278
2023	2.796
2024	2.798
2025	3.155
2026	3.343
2027	3.469
2028	3.569
2029	3.644