Year	% of total employment
1994	31.389247172426504
1995	31.02399877159179
1996	30.865765363298475
1997	29.914699911359897
1998	31.318740203141815
1999	29.119312017255474
2000	27.707439094468032
2001	29.070427734583845
2002	28.930524426641604
2003	29.578886717323332
2004	29.501045184313615
2005	28.87918489030795
2006	28.83676905746706
2007	28.40233785977296
2008	29.164760836983987
2009	33.16660358809539
2010	31.247075819788776
2011	30.903010981573576
2012	30.04233004709156
2013	29.454347382170813
2014	30.053336937775686
2015	30.167891488951863
2016	28.96332967053921
2017	29.21351036161524
2018	27.824333117404738
2019	27.661169286731077
2020	30.381230708021413
2021	27.693272978834784
2022	28.149936189931427
2023	27.84469525891151