Year	% of total labor force
1991	44.45895210721584
1992	44.420687837591935
1993	44.380750302065834
1994	44.401312315752065
1995	44.22916408572844
1996	43.95978848632357
1997	44.03937852447352
1998	44.172176687090115
1999	44.30083139729374
2000	44.29836886420395
2001	44.250922962562086
2002	44.07768158236309
2003	44.158527862517715
2004	44.06789012969992
2005	43.97195222206103
2006	43.92790737277511
2007	43.56808821964867
2008	43.34598856328443
2009	43.36694892550863
2010	43.31262584332923
2011	43.54884569719131
2012	43.75730494129497
2013	44.043720855151896
2014	43.96368513126575
2015	44.1899583386697
2016	44.32194589910429
2017	44.43686313521237
2018	44.57921867932186
2019	44.53089910904189
2020	44.29768652568084
2021	44.40546301490874
2022	44.55757971464153
2023	44.10426142853846