Year	Percent of total labor force (Units)
1980	9.241
1981	9.824
1982	10.755
1983	12.543
1984	13.718
1985	15.452
1986	16.049
1987	16.592
1988	17.238
1989	17.829
1990	18.784
1991	20.162
1992	21.213
1993	22.163
1994	22.890
1995	16.500
1996	20.300
1997	22.000
1998	26.100
1999	23.300
2000	23.000
2001	25.950
2002	27.800
2003	27.650
2004	25.150
2005	24.650
2006	23.550
2007	23.000
2008	22.525
2009	23.700
2010	24.875
2011	24.800
2012	24.875
2013	24.725
2014	25.100
2015	25.350
2016	26.725
2017	27.450
2018	27.125
2019	28.700
2020	29.175
2021	34.300
2022	33.500
2023	32.800
2024	33.465
2025	33.882
2026	34.179
2027	34.456
2028	34.730
2029	35.003