Year	Percent of total labor force (Units)
1980	7.370
1981	7.649
1982	8.288
1983	7.367
1984	7.833
1985	8.167
1986	8.867
1987	9.617
1988	9.683
1989	9.667
1990	8.858
1991	8.533
1992	8.808
1993	9.833
1994	10.633
1995	11.150
1996	11.150
1997	11.242
1998	11.333
1999	10.942
2000	10.100
2001	9.100
2002	8.608
2003	8.450
2004	8.042
2005	7.758
2006	6.875
2007	6.208
2008	6.783
2009	7.875
2010	8.500
2011	8.583
2012	10.908
2013	12.358
2014	12.767
2015	12.017
2016	11.725
2017	11.292
2018	10.617
2019	9.900
2020	9.358
2021	9.525
2022	8.117
2023	7.658
2024	7.828
2025	8.016
2026	8.338
2027	8.495
2028	8.610
2029	8.617