Year	% of total labor force
1991	36.087034064562154
1992	36.14519517663883
1993	36.17095752314612
1994	36.29474919736251
1995	36.28855003777732
1996	36.28183855351614
1997	36.350372393668465
1998	36.39290108371395
1999	36.428954243987405
2000	36.42422825070159
2001	36.43099103909757
2002	36.460568557978604
2003	36.49508098976448
2004	36.54122189041593
2005	36.59649929394765
2006	36.66010637432703
2007	36.71764098593367
2008	36.77345282326864
2009	36.83483502338869
2010	36.88488985417313
2011	36.929320257017245
2012	37.00955524932992
2013	37.10451914015169
2014	37.19843206863398
2015	37.28221462226071
2016	37.365540392614754
2017	37.450722733245726
2018	37.5376017564119
2019	37.61416089098429
2020	37.6671432175595
2021	37.91718636494469
2022	37.697944688125304
2023	37.66824891085246