Year	% of total labor force (modeled ILO estimate)
1991	18.05
1992	18.642
1993	18.82
1994	18.956
1995	18.635
1996	18.64
1997	18.382
1998	18.619
1999	18.292
2000	17.986
2001	17.447
2002	17.079
2003	16.719
2004	16.31
2005	15.77
2006	15.238
2007	14.758
2008	14.368
2009	13.97
2010	13.95
2011	13.937
2012	14.053
2013	14.348
2014	14.59
2015	13.637
2016	12.714
2017	11.676
2018	11.702
2019	10.881
2020	13.558
2021	12.537
2022	11.291
2023	11.22