Year	Percent of total labor force
1991	9.237
1992	9.537
1993	9.337
1994	7.387
1995	7.287
1996	7.537
1997	7.187
1998	7.387
1999	6.287
2000	6.343
2001	7.179
2002	6.619
2003	6.764
2004	6.145
2005	6.41
2006	5.491
2007	5.008
2008	4.638
2009	5.31
2010	5.001
2011	5.783
2012	6.445
2013	7.019
2014	6.4
2015	5.94
2016	5.494
2017	5.1
2018	5.2
2019	5.2
2020	5.2
2021	5.2
2022	5.2
2023	5.2
2024	5.2