Year	% of total labor force
2006	6.660006660006661
2007	6.230684876881667
2008	6.215761513662244
2009	5.444442157690013
2010	5.367046237653004
2011	4.981472847292092
2012	4.835348061692372
2013	4.81443857242805
2014	4.565422732656641
2015	4.424275134839423
2016	4.353842763046172
2017	4.318472987951461
2018	4.335036926792283
2019	4.108210258201015
2020	4.426100715921791