Year	% of total labor force (modeled ILO estimate)
1991	19.14
1992	18.922
1993	19.096
1994	19.4
1995	21.319
1996	22.837
1997	24.45
1998	23.083
1999	21.67
2000	20.3
2001	20.986
2002	21.51
2003	22.068
2004	22.09
2005	22.105
2006	21.861
2007	22.11
2008	22.004
2009	22.253
2010	22.12
2011	19.479
2012	16.771
2013	19.028
2014	18.521
2015	20.799
2016	23.352
2017	21.739
2018	19.877
2019	19.945
2020	20.966
2021	20.877
2022	19.748
2023	19.422