Year	% of male labor force (national estimate)
1979	3.27
1980	3.18
1981	3.2
1982	3.21
1983	4.54
1984	4.41
1985	4.21
1986	4.18
1987	3.34
1988	2.92
1989	2.74
1990	2.81
1991	4.19
1992	3.79
1993	3.36
1994	3.41
1995	3.71
1996	3.61
1997	3.91
1998	4.09
1999	3.85
2000	5.54
2001	5.31
2002	6.24
2003	6
2004	6.22
2005	5.96
2006	0.642
2007	0.434
2008	0.396
2009	0.58
2010	0.657
2011	0.831
2012	3.637
2013	2.822
2014	1.773
2015	2.796
2016	2.152
2018	3.955
2019	4.408
2021	5.489
