Year	Percent of total labor force
1990	12.327
1991	10.393
1992	11
1993	10.6
1994	10.3
1995	5.82
1996	5.88
1997	6.01
1998	6.85
1999	6.74
2000	6.42
2001	6.28
2002	6.01
2003	5.78
2004	5.6
2005	5.31
2006	4.82
2007	4.64
2008	4.65
2009	4.6
2010	4.29
2011	4.513
2012	2.74
2013	2.75
2014	2.1
2015	2.33
2016	2.33
2017	2.21
2018	2.21
2019	2.21
2020	2.21
2021	2.21
2022	2.21
2023	2.21
2024	2.21