Year	% of total employment
2002	14.9
2003	14.2
2004	14.74
2005	16.95
2006	16.23
2007	16.91
2008	17.9
2009	18.48
2010	17.41
2011	16.74
2012	18.55
2013	18.21
2014	20.83
2015	25.7
2016	24.1
2017	23.15
2018	25.34
2019	25.95
2020	29.57
2021	27.04
2022	28.14
2023	26.36