Year	% of total labor force
1991	0.8534225511456544
1992	0.7563671796957563
1993	0.7348888218451481
1994	0.6884991350862019
1995	1.044975790736361
1996	1.0476360093449133
1997	1.0039082551226766
1998	0.9660328198847294
1999	0.932567940089395
2000	0.9271537342371827
2001	0.9009455368249046
2002	0.8854343866143576
2003	0.8774009124369909
2004	0.8590657147348517
2005	0.8370568972343823
2006	0.9422246802973021
2007	0.9376467199652853
2008	0.9173605244310806
2009	0.917357599053455
2010	0.8952837672701991
2011	0.8873558272264519
2012	0.8740591067717206
2013	0.8681739368714287
2014	0.850251674124608
2015	0.8450900005608599
2016	0.8341829426403223
2017	0.8202031108541696
2018	0.8221864428138903
2019	0.7995069495073895
2020	0.82742444168158