Year	% of total employment
1994	30.78
1995	30.25
1996	30.22
1997	29.2
1998	30.6
1999	28.29
2000	26.92
2001	28.05
2002	27.77
2003	28.09
2004	28.2
2005	27.66
2006	27.43
2007	27.1
2008	27.79
2009	31.85
2010	29.87
2011	29.56
2012	28.79
2013	27.97
2014	28.33
2015	28.76
2016	27.42
2017	27.56
2018	26.31
2019	25.74
2020	28.83
2021	26.1
2022	26.47
2023	26.28