Year	% of total labor force
1991	47.164435873132405
1992	47.33990746749017
1993	47.65336813661323
1994	47.890427854347855
1995	48.05188455340536
1996	48.17181202184
1997	48.306641549839284
1998	48.43992149732192
1999	48.57550923155352
2000	48.713174221225046
2001	48.83785987904562
2002	48.957697498474
2003	49.08328692488003
2004	49.19921278902114
2005	49.31673222869549
2006	49.443005498289
2007	49.58180487291869
2008	49.75201826581888
2009	49.865990986347576
2010	50.01318282936475
2011	50.16680925927328
2012	50.31755471802496
2013	50.43641793655852
2014	50.56247249363387
2015	50.68440624857613
2016	50.773479066482764
2017	50.94096480665243
2018	51.086220690504035
2019	51.94557070545594
2020	52.7400427562204
2021	52.755634771884964
2022	52.029966785618456
2023	52.034456964204836