Year	% of total labor force (modeled ILO estimate)
1991	3.8571702880088057
1992	3.8612557037245456
1993	3.9282059921518027
1994	3.9033591931126965
1995	3.97847281909321
1996	4.012730898591391
1997	4.146776139050693
1998	4.246389444804066
1999	4.287536597621736
2000	4.384339965316232
2001	4.487925254462723
2002	4.5780120136310885
2003	4.479090849173712
2004	4.30987581256897
2005	3.802708952582923
2006	3.771161792493316
2007	3.7353027574226783
2008	3.6503810188296955
2009	3.597749387396166
2010	3.509886442157178
2011	3.460607565869537
2012	3.5757770470143337
2013	3.4725043848334884
2014	3.4610386676446576
2015	3.460482006644828
2016	3.466241893561767
2017	3.4841882909362862
2018	3.4916362514950547
2019	3.5185142769095683
2020	3.505812806663355
2021	3.6047441565557405
2022	3.830678887375981
2023	3.7294206553349745