Year	% of total employment
1999	28.22
2000	26.6
2001	28.88
2002	30
2003	32.28
2004	28.4
2005	28.68
2006	26.38
2007	26.96
2008	27.85
2009	31.79
2010	29.02
2011	28.95
2012	27.37
2013	32.7
2014	34.76
2015	33.78
2016	31.06
2017	29.72
2018	28.84
2019	31.04
2020	36.35
2021	34.89
2022	33.48
2023	28.91