Year	Percent of total labor force
1994	10.1
1995	10.983
1996	12.959
1997	13.008
1998	13.116
1999	13.465
2000	12.753
2001	10.433
2002	9.334
2003	8.777
2004	8.402
2005	8.1
2006	7.8
2007	7.258
2008	6.625
2009	6.575
2010	5.783
2011	5.4
2012	5.292
2013	5.225
2014	5.042
2015	5.111
2016	4.951
2017	4.951
2018	4.951
2019	4.951
2020	4.951
2021	4.951
2022	4.951
2023	4.951
2024	4.951