Year	% of total labor force
1991	42.624125978222764
1992	42.529602687995364
1993	41.95129297882142
1994	42.4922320072248
1995	42.48401668672441
1996	42.42738356978086
1997	42.186619034049315
1998	42.198924311376516
1999	42.37384867015934
2000	42.04391789595747
2001	42.19662173119448
2002	42.40536179691995
2003	42.31726376973078
2004	41.78386077485482
2005	41.68761181929593
2006	41.73677843241413
2007	41.57376129042423
2008	41.531465728236306
2009	41.60447354159663
2010	41.71449633149282
2011	41.58652201348711
2012	41.58365344650311
2013	41.5362948665072
2014	41.36100080443083
2015	41.394870670776875
2016	41.37681358947553
2017	41.344173101879186
2018	41.298029852374334
2019	41.36726161828619
2020	41.145060826252156
2021	41.31109447267308
2022	40.06087843632384
2023	40.072633492280396