Year	% of total labor force (national estimate)
1992	10.504728891502783
1993	12.400692679669413
1994	11.370321971061191
1995	10.68401502939643
1996	10.198837087095852
1997	9.202350594827129
1998	9.017686801229347
1999	10.417627683008506
2000	12.41386331935282
2001	13.22255987691457
2002	13.755883517675112
2003	13.003456280055948
2004	12.923232977108748
2005	12.06262784952967
2006	10.107893656917106
2007	7.812689322897674
2008	6.6075861646924015
2009	8.487527424349267
2010	9.900231725910608
2011	9.791836163607655
2012	9.981987079835585
2013	10.050284720686419
2014	8.865552590272673
2015	7.823768377992269
2016	6.494236211842543
2017	5.298197918435442
2018	4.316313810506895
2019	3.781422186113398
2020	4.374580050226918
2021	4.487086957947275
2022	4.007218579876555
2023	4.0430186437265565