Year	% of total labor force (modeled ILO estimate)
1991	3.705185439906514
1992	3.7822117733707503
1993	4.017604519105131
1994	4.443383129438577
1995	4.8617278607547485
1996	5.041906806587405
1997	5.081244716603097
1998	5.375044923329462
1999	5.632955631188574
2000	5.580828468558515
2001	5.853554842480303
2002	6.192935645642756
2003	6.314936800439398
2004	6.1643802569479735
2005	6.160217549444589
2006	5.918983418098499
2007	5.835946757698056
2008	5.810061404286592
2009	6.136307662228096
2010	5.8576095419277205
2011	5.651751154728309
2012	5.557825625689245
2013	5.517883061310037
2014	5.534281174473387
2015	5.7542040918896245
2016	5.987708915199905
2017	5.98707050154594
2018	5.914726418490457
2019	6.03939956872472
2020	6.707849486211371
2021	6.316159640008202
2022	5.939225772484818
2023	5.58021086539816