Year	Percent of total labor force (Units)
1980	0.723
1981	1.015
1982	1.330
1983	1.615
1984	1.748
1985	1.667
1986	1.458
1987	1.669
1988	1.536
1989	1.402
1990	1.256
1991	1.380
1992	1.634
1993	2.105
1994	2.732
1995	2.961
1996	3.241
1997	3.302
1998	3.057
1999	2.890
2000	2.400
2001	2.217
2002	2.500
2003	3.292
2004	3.692
2005	4.083
2006	4.233
2007	4.183
2008	4.142
2009	5.483
2010	5.817
2011	5.667
2012	6.099
2013	6.830
2014	7.092
2015	6.648
2016	6.263
2017	5.843
2018	5.103
2019	5.406
2020	6.363
2021	5.746
2022	4.817
2023	5.230
2024	5.993
2025	6.035
2026	5.847
2027	5.636
2028	5.532
2029	5.463