Year	% of male labor force (national estimate)
1991	0.07
1992	0.13
1993	0.37
1994	0.46
1995	0.6
1996	0.7
1997	0.83
1998	0.93
1999	14.19
2000	10.89
2001	10.34
2002	9.72
2003	9.07
2004	7.94
2005	7.23
2006	6.88
2007	7.09
2008	6.15
2009	4.94
2010	4.39
2011	4.43
2012	4.32
2013	4.04
2014	4.02
2015	4.09
2016	4.2
2017	4.1
2018	4.1
2019	4.29
2020	6.13
2021	5.15
2022	4.81