Year	% of total employment
2004	39.62
2005	37.88
2006	37.12
2008	34.82
2009	36.08
2010	35.27
2011	34.68
2012	35.76
2013	35.64
2014	36.51
2017	39.89
2018	40.47
2019	42.26
2020	50.67
2021	43.05
2022	41.13
2023	40.6