Year	% of male labor force (national estimate)
1979	1.8
1980	2.7
1984	3.9
1985	3
1986	3.2
1987	2.8
1988	2.7
1989	2.1
1990	2.4
1991	2.3
1992	2
1993	2.6
1994	1.6
1995	1.5
1996	2
1997	1.9
1998	1.8
1999	1.6
2000	1.7
2005	1.69
2006	1.24
2009	2.35
2010	2.13
2012	3.36
2013	3.94
2014	4.28
2015	4.42
2016	3.52
2017	4.92
2018	4.81
2019	4.63
2020	4.48
2021	3.49
2022	2.92