Year	Percent of total labor force (Units)
1988	7.000
1989	7.900
1990	6.100
1991	8.500
1992	8.900
1993	8.300
1994	5.696
1995	5.493
1996	9.046
1997	7.828
1998	10.163
1999	13.107
2000	7.625
2001	9.554
2002	7.828
2003	10.163
2004	7.219
2005	7.095
2006	6.687
2007	6.923
2008	5.950
2009	6.470
2010	5.020
2011	4.210
2012	4.120
2013	4.150
2014	3.800
2015	4.770
2016	5.210
2017	4.620
2018	3.690
2019	3.840
2020	5.346
2021	4.150
2022	3.190
2023	3.700
2024	4.200
2025	4.000
2026	3.800
2027	3.600
2028	3.500
2029	3.500