Year	% of male labor force (national estimate)
1975	11.3
1976	8
1977	3
1978	1.7
1979	1.5
1980	1.6
1981	2.4
1982	2.4
1983	2.9
1984	2.9
1985	2.9
1986	2.9
1987	2.7
1988	2.2
1989	1.7
1990	1.4
1991	2.2
1992	2
1993	1.8
1994	2
1995	1.9
1996	2.3
1997	2.7
1998	2.8
1999	4.304
2000	2.851
2001	2.665
2002	2.604
2003	3.776
2004	3.541
2005	4.494
2006	3.904
2007	3.408
2008	3.213
2009	5.493
2010	6.229
2011	8.118
2012	12.781
2013	16.799
2014	17.219
2015	15.152
2016	12.657
2017	10.972
2018	8.158
2019	6.321
2020	7.702
2021	7.076
2022	5.958
2023	6.031