Year	Percent of total labor force (Units)
2003	1.800
2004	2.500
2005	3.100
2006	3.200
2007	3.700
2008	3.850
2009	4.000
2010	3.300
2011	3.100
2012	2.100
2013	2.900
2014	2.600
2015	2.500
2016	2.100
2017	3.138
2018	3.400
2019	2.720
2020	5.030
2021	4.800
2022	5.900
2023	3.500