Year	% of total labor force
1991	40.68461548905947
1992	40.595065773397046
1993	40.39363025124999
1994	40.40504740971599
1995	40.37726487572943
1996	40.394806476850846
1997	40.5710689537695
1998	40.608608851108585
1999	40.50010251770209
2000	40.507725038902855
2001	40.71033382499289
2002	40.73730907612201
2003	40.822970488019365
2004	41.082571202809234
2005	41.21275361306665
2006	41.32905010054465
2007	41.35886170205466
2008	41.51657825685991
2009	41.80252203144663
2010	41.930453385558906
2011	41.95943891088511
2012	42.08414856236388
2013	42.544059986095185
2014	42.78783858647567
2015	42.95701163275834
2016	43.301862978810476
2017	43.68193574886422
2018	44.106136885822984
2019	44.440476531348565
2020	44.363117100866525
2021	44.59524430435306
2022	44.8645272390892
2023	45.11157781030483