Year	% of total employment
1997	21.58
1998	23.31
1999	23.43
2000	22.5
2001	22.5
2002	17.21
2003	16.75
2004	15
2005	17.03
2006	16.22
2007	16.14
2008	16.59
2009	16.99
2010	17.67
2011	16.67
2012	16.79
2013	16.43
2014	15.95
2015	16.56
2016	14.02
2017	13.76
2018	13.54
2019	12.92
2020	16.67
2021	9.47
2022	10.08
2023	11.27