Year	% of total labor force
1991	48.623654601359945
1992	48.74900684355901
1993	48.89843547483464
1994	49.051318295722126
1995	49.196593307794544
1996	49.30532083965568
1997	49.38462856323548
1998	49.44847685690931
1999	49.51976320364954
2000	49.44594419794336
2001	49.36766609601991
2002	49.289510693589826
2003	49.214334457695315
2004	49.14139397895798
2005	49.072594553216916
2006	49.010168495000784
2007	48.95366995759128
2008	48.90198333951935
2009	48.85963393733976
2010	48.82156455614685
2011	48.79057997147795
2012	48.76434245843117
2013	48.73720725602036
2014	48.71162530380359
2015	48.69089186620788
2016	48.67062730611483
2017	48.90986459609741
2018	49.160781056942035
2019	49.42112450719512
2020	49.43663406573266
2021	49.77664260710403
2022	49.70980159115596
2023	49.78904664391746
