Year	% of total labor force
1991	1.464356437874115
1992	1.250852664566346
1993	1.1851837151898794
1994	1.0418365006741492
1995	1.0447797979235136
1996	0.8815719736770804
1997	0.7834752695000293
1998	0.7694437407878482
1999	0.745527024236338
2000	0.693166507214091
2001	0.6631666733460433
2002	0.6199480532752184
2003	0.6996802846565721
2004	0.6149322251867886
2005	0.7094595313641417
2006	0.540618996998977
2007	0.472626292085354
2008	0.5322649982084187
2009	0.4857792362965392
2010	0.4869915782717521
2011	0.486470229313977
2012	0.4803706464468714
2013	0.4782214315431543
2014	0.46390657386616085
2015	0.4541569210557417
2016	0.45253443933874976
2017	0.4459180283027436
2018	0.4448275769465234
2019	0.43310836698814226
2020	0.43148202288033405