Year	% of total labor force
2005	7.999051541031564
2006	7.713413626296129
2007	7.191602263299969
2008	7.011911484634522
2009	6.731634957861167
2010	6.424398028168691
2011	6.012267172269706
2012	5.7818865882945705
2019	0
2020	0