Year	% of total labor force
1991	42.21876795229865
1992	42.274168820137156
1993	42.259769126535666
1994	42.38121279063944
1995	42.466010825459264
1996	42.493030201206686
1997	42.5037624193322
1998	42.55896300024198
1999	42.56991823179023
2000	42.5721081191742
2001	42.496592100769554
2002	42.445443669882664
2003	42.43018473491122
2004	42.34687172652591
2005	42.3280920879859
2006	42.273282968251046
2007	42.3426380255339
2008	42.268752182280295
2009	42.246238307367356
2010	42.14062476405728
2011	42.15377907805523
2012	42.21737358436284
2013	42.17993987562945
2014	42.175177009463305
2015	42.275456047114716
2016	42.386447541576004
2017	42.495765505576486
2018	42.584156563008335
2019	42.71390700972494
2020	42.51162116193867
2021	42.793945671838394
2022	42.5994738150899
2023	42.59901284861535