Year	Percent of total labor force
1995	7.7
1996	7.452
1997	6.757
1998	4.211
1999	3.172
2000	3.112
2001	4.412
2002	4.064
2003	3.151
2004	3.531
2005	3.624
2006	2.511
2007	1.863
2008	1.716
2009	5.136
2010	4.605
2011	4.13
2012	3.705
2013	3.325
2014	2.983
2015	2.684
2016	2.684
2017	3
2018	3
2019	3
2020	3
2021	3
2022	3
2023	3
2024	3