Year	% of total labor force
1991	38.245419973332304
1992	38.40916387244061
1993	38.588808694596686
1994	38.76041176826628
1995	38.92997394208537
1996	39.33087731706335
1997	39.78913991972642
1998	40.277223010699686
1999	40.54826235807
2000	40.61078160946755
2001	40.76113126992974
2002	40.95029048180667
2003	41.176429499448176
2004	41.428001916241485
2005	41.79963565420742
2006	42.20124004658043
2007	42.634723534717075
2008	43.01967269408373
2009	43.36414244370429
2010	42.83852049789685
2011	42.65213122921154
2012	45.16138746845431
2013	41.140310165766174
2014	39.79714032524609
2015	40.25158701885735
2016	40.34118406194548
2017	40.46074678238348
2018	40.60689153457659
2019	42.4906553086407
2020	43.27539523102455
2021	43.83604588631634
2022	43.3763342897798
2023	43.41987633166952