Year	% of total labor force
1991	42.047498301411714
1992	42.2442314944972
1993	42.372597747878956
1994	42.529198550140954
1995	42.730999076909434
1996	42.88687376448384
1997	43.07768097530695
1998	43.294619935065164
1999	43.86286868879281
2000	44.44821259890716
2001	44.758001324092405
2002	45.07331260221022
2003	45.39343227977407
2004	45.71207254203464
2005	46.03013949901694
2006	46.33657391333102
2007	46.2868153259373
2008	46.244079299514226
2009	46.21834819344994
2010	46.009555128125584
2011	46.12190729890681
2012	46.24930715598472
2013	46.38402237701369
2014	46.52290446734488
2015	46.64872975961272
2016	46.7609169707416
2017	46.866538743732725
2018	46.962385530136665
2019	47.05980795790982
2020	46.94872337131182
2021	47.33434249806856
2022	47.50892647414531
2023	47.49294874478686