Year	% of total labor force
1991	41.02987209074934
1992	41.13193077248959
1993	41.13070529095756
1994	41.48194114109779
1995	41.65569837183717
1996	41.78848800764319
1997	41.959553035159644
1998	42.01952373744612
1999	42.176809319505175
2000	42.28246646635173
2001	42.38772403386659
2002	42.54421037483841
2003	42.6987980814325
2004	42.759707749610065
2005	42.87084111489385
2006	43.01087950953802
2007	43.09853216570308
2008	43.239365845856135
2009	43.52068965049343
2010	43.625280216144915
2011	43.69109551803734
2012	43.80116992320847
2013	43.884759588874964
2014	43.9047696745001
2015	43.94506702129427
2016	44.03064332832016
2017	44.127405733419316
2018	44.21756569843637
2019	44.40364597565685
2020	44.34545531489651
2021	44.48819270306047
2022	44.681837865958705
2023	44.832193491648056