Year	% of total labor force (national estimate)
1995	5.5
2002	6.2
2003	6.768
2006	7.193
2007	7.2
2008	5.565
2009	5.86
2010	6.549
2011	4.769
2012	3.905
2013	4.231
2014	4.798
2015	4.861
2016	7.235
2017	6.359
2018	5.377
2019	9.269
2020	6.594
2021	7.747
2022	6.211