Year	% of total labor force (national estimate)
1991	6.666369930144441
1992	7.207568624701352
1993	7.748092316739371
1994	8.057995621959561
1995	7.839654836517074
1996	7.878995421031062
1997	7.87835085134521
1998	7.969160895475671
1999	7.813637686960973
2000	7.162404624023612
2001	6.951491770202349
2002	7.2689299325302725
2003	7.386027557250593
2004	7.18526853545621
2005	6.848098429387047
2006	6.374821639238502
2007	5.751293899007609
2008	5.975771121804178
2009	8.106345745580313
2010	8.250468936541537
2011	7.944038743297006
2012	7.821725813636268
2013	7.738770555111876
2014	7.134059700176537
2015	6.639125041738298
2016	6.134530019222107
2017	5.625327293045578
2018	5.114236418998876
2019	4.777308626358525
2020	6.476995301026292
2021	5.565531374686256
2022	4.508387907339897
2023	4.4159963154845965