Year	% of male labor force (national estimate)
1976	3.89
1977	3.4
1978	1.82
1979	1.61
1980	1.58
1981	1.38
1982	1.23
1983	1.49
1984	2.62
1985	4.48
1986	7.44
1987	5.41
1988	4.09
1989	2.58
1991	2.2
1992	3.03
1993	2.87
1994	2.78
1995	3.21
1996	3.38
1997	2.43
1998	3.22
1999	4.64
2000	3.9
2001	3.68
2002	5.56
2003	5.76
2004	5.57
2006	4.14
2007	3.64
2008	3.61
2009	5.37
2010	3.9
2011	3.58
2012	3.34
2013	3.46
2014	3.46
2015	3.64
2016	3.78
2017	4
2019	3
2020	3.9
2021	4.332
2022	3.395
