Year	% of total labor force
1991	14.727859393883888
1992	14.305783685178596
1993	14.001219149945587
1994	14.119712129190804
1995	14.571145232247801
1996	15.010291341254586
1997	15.436487699071055
1998	15.87527682578177
1999	16.3096419061542
2000	16.65602782241201
2001	17.008367523407358
2002	17.420362653346615
2003	17.84150610470834
2004	17.92627649939769
2005	17.886907211490772
2006	17.82552540312344
2007	17.747871884080986
2008	17.663933287004866
2009	17.582377629570907
2010	16.560469986168087
2011	15.029716615085842
2012	13.89805335961158
2013	13.319221907987849
2014	13.334090338787979
2015	13.42517859292142
2016	13.34036288463491
2017	13.324653946996504
2018	13.665986080078074
2019	14.293978588899495
2020	15.192211279055803
2021	16.050223264030066
2022	16.33933392981058
2023	16.745451978096433