Year	% of total labor force (modeled ILO estimate)
1991	8.17
1992	8.114
1993	8.338
1994	8.34
1995	8.987
1996	9.588
1997	10.224
1998	10.83
1999	11.46
2000	11.561
2001	11.725
2002	11.842
2003	12.013
2004	12.131
2005	12.216
2006	12.349
2007	12.483
2008	12.647
2009	12.753
2010	12.778
2011	13.277
2012	13.44
2013	13.638
2014	13.467
2015	17.9
2016	18.382
2017	18.564
2018	17.644
2019	17.303
2020	17.972
2021	18.248
2022	17.515
2023	17.215