Year	% of total labor force
1991	37.309752426459255
1992	37.27538093930587
1993	37.45625281057362
1994	37.67005595852677
1995	37.982702621123046
1996	37.979933608578335
1997	38.149016581582174
1998	38.06664534956905
1999	37.90227695624906
2000	37.68764051268069
2001	37.57415002498398
2002	37.53084964429568
2003	38.037704722794416
2004	39.80192815757464
2005	39.571626731155064
2006	38.0246350079459
2007	39.25544540881516
2008	38.80459570199216
2009	39.619485242553424
2010	39.188379840158674
2011	40.13951682555628
2012	42.050925692684274
2013	41.33731218144547
2014	40.08596521401115
2015	40.436027063606886
2016	40.43874131621742
2017	40.56713218332364
2018	41.44058714623
2019	41.731763983671044
2020	40.84611341228793
2021	41.75753017241127
2022	41.964501039119355
2023	42.1666886247449