Year	Percent of total labor force
2007	5.6
2008	3.7
2009	4
2010	3.6
2011	4
2012	3.7
2013	4.392
2014	3.767
2015	3.358
2016	3.7
2017	3.637
2018	3.914
2019	3.949
2020	3.914
2021	3.879
2022	3.867
2023	3.821
2024	3.797