Year	% of total employment
2002	37.6
2007	19.29
2008	23.82
2009	22.13
2010	24.21
2011	50.08
2012	29.29
2013	26.11
2014	32.14
2015	30.85
2016	26.54
2017	24.62
2018	21.81
2019	20.1