Year	% of total employment
2000	19.26
2001	14.94
2002	15.47
2003	14.25
2004	15.01
2005	12.09
2006	15.22
2007	18.53
2008	16.49
2009	19.06
2010	22.59
2011	23.12
2012	18.77
2013	22.13
2014	21.63
2015	21.22
2016	20.66
2017	21.3
2018	22.84
2019	23.08
2020	31.78
2021	25.04
2022	22.87
2023	23.69