Year	% of total employment
2002	23.5
2003	25.28
2004	26.23
2005	22.66
2006	23.6
2007	26.58
2008	26.75
2009	28.35
2010	27.74
2011	27.3
2012	27.49
2013	27.13
2014	26.74
2015	26.87
2016	26.07
2017	25.34
2018	25.11
2019	25.98
2020	32.14
2021	27.15
2022	25.43
2023	25.89