Year	% of total labor force (national estimate)
1994	5.169503104111702
1996	5.109481340484545
1997	5.281331163024351
1998	5.731085711266013
1999	6.017659824460838
2000	5.356579828175619
2001	6.0744057756194465
2002	6.6319491833769915
2003	6.461971572326035
2004	6.327808706264722
2005	5.762080423353287
2006	5.982265102055756
2007	5.690319371053809
2008	5.67556615791747
2009	5.964967760036491
2010	4.956065862730497
2011	5.55506581437566
2012	4.891688538961
2013	5.291513505765718
2014	5.334706267012459
2017	5.519189711704192
2018	6.307392536634876
2019	6.1295678473061574
2020	6.914055592270772
2021	6.377785634933097
2022	5.574641228686354