Year	% of total labor force
1991	46.30577097468423
1992	46.3406130475238
1993	46.40446223193349
1994	46.484976553215596
1995	46.574303914930255
1996	46.78656900526128
1997	46.993122762934895
1998	47.19145135865414
1999	47.38627176827036
2000	47.5809885487124
2001	47.60427905974664
2002	47.63584995072399
2003	47.66958818058992
2004	47.68980937067524
2005	47.6921448561618
2006	47.63751743536528
2007	47.587308115103646
2008	47.54216381099684
2009	47.50968937522872
2010	47.49717223650386
2011	47.480185896668445
2012	47.49094190989454
2013	47.530601711406476
2014	47.59962765199312
2015	47.69482498762325
2016	47.80025530874012
2017	47.930283143269016
2018	48.085595475980845
2019	48.26758877002093
2020	48.25165153749097
2021	48.39892101747044
2022	48.265708221862624
2023	48.30170298778598