Year	Percent of total labor force (Units)
1985	4.000
1986	3.900
1987	3.700
1988	3.700
1989	3.400
1990	3.400
1991	3.500
1992	5.441
1993	9.206
1994	10.994
1995	9.882
1996	7.323
1997	7.850
1998	9.611
1999	7.175
2000	7.592
2001	7.392
2002	8.317
2003	7.750
2004	7.983
2005	7.125
2006	7.175
2007	6.342
2008	5.600
2009	8.425
2010	9.025
2011	9.092
2012	8.692
2013	8.992
2014	8.592
2015	8.392
2016	7.200
2017	6.092
2018	5.250
2019	4.892
2020	6.075
2021	5.608
2022	5.625
2023	5.567
2024	5.600
2025	5.400
2026	5.200
2027	5.100
2028	5.000
2029	4.900