Year	% of total labor force
1991	1.1019151284933213
1992	1.0453061832474004
1993	1.0181983870464801
1994	0.86710500889402
1995	1.9330256374687316
1996	1.8838363607455524
1997	2.020906362191075
1998	1.9649930640754736
1999	1.8836499723677207
2000	1.8788046807071326
2001	1.8110647608774109
2002	1.7710159048071206
2003	1.730979537601367
2004	1.6765550541231422
2005	1.6860075822169553
2006	1.8788601521378714
2007	1.8791566435545495
2008	1.8158186684098527
2009	1.7713694325081635
2010	1.7336298562733337
2011	1.697137630518451
2012	1.7417011186452245
2013	1.687845201873995
2014	1.3727846976152493
2015	1.4300651924944072
2016	1.3950100178177263
2017	1.3379872676377815
2018	1.2555036441390581
2019	1.2489050093404022
2020	1.2444407675991092