Year	% of total labor force
1991	37.99485676760948
1992	38.025139875878416
1993	38.016996382109966
1994	38.1178490740188
1995	38.11267300303653
1996	38.10574502696102
1997	38.096551008118155
1998	38.13828006751748
1999	38.124712782961886
2000	38.10770737000666
2001	38.09585934302253
2002	38.07979685878136
2003	38.11467686080176
2004	38.1026121155762
2005	38.16239906552103
2006	38.08295955938137
2007	38.084045048597034
2008	37.9555217654101
2009	37.900625672559755
2010	37.7594066554311
2011	37.693985638118285
2012	37.65161112921008
2013	37.65350758390314
2014	37.67193190022007
2015	37.74655270723058
2016	37.805391414197445
2017	37.86621610308511
2018	37.866791310013916
2019	37.94544499340481
2020	37.71743837090712
2021	38.00323122238201
2022	37.89381404126371
2023	38.36906777614781