Year	% of total employment
2007	19.56
2008	13.57
2009	12.37
2010	12.75
2011	11.67
2012	12.58
2013	16.48
2014	30.7
2015	23.15
2016	22.58
2017	22.67
2018	20.78
2019	20.77
2020	21.92
2021	15.96
2022	15.56