Year	% of total labor force (national estimate)
2000	11.629
2001	57
2002	55
2003	49.7
2004	39.7
2005	41.4
2006	44.9
2007	46.3
2008	47.5
2009	45.4
2012	30.879
2013	29.766
2014	35.264
2015	32.84
2016	27.491
2017	30.344
2018	27.761
2019	25.069
2020	25.459
2021	20.392
2022	12.093