Year	% of total labor force
1991	45.34133088316522
1992	45.19461917692795
1993	44.83173946632856
1994	44.975633139734875
1995	44.94835967231591
1996	44.87862018678511
1997	44.8403818649216
1998	44.86411737730138
1999	45.23803676733943
2000	45.172366579066676
2001	45.23490601381182
2002	45.42477957049655
2003	45.37364753744467
2004	45.160734424384664
2005	45.14099278160408
2006	45.223454640442924
2007	45.09090250582111
2008	44.89235772214364
2009	44.95062504600343
2010	44.862877007921774
2011	44.8085621855485
2012	44.768686863396034
2013	44.65303754149048
2014	44.5204891107875
2015	44.43341751824734
2016	44.38013580222623
2017	44.335108537166114
2018	44.33335340776527
2019	44.32255285864922
2020	44.250956254016934
2021	44.327206189465315
2022	44.17747324192596
2023	44.102328948603635