Year	% of total employment
2012	28.41160997213301
2013	28.40052714960617
2014	28.1542822723569
2015	27.73719392847017
2016	26.157816448989973
2017	28.060947146765738
2018	29.386680365634835
2019	29.704100209319805
2020	35.86543696568219
2021	29.681390216391076
2022	27.13589635222098
2023	27.12455467149182