Year	% of total employment (modeled ILO estimate)
1991	4.16690284183135
1992	3.87297244679434
1993	3.61209235847785
1994	3.81800102724216
1995	1.82469851901065
1996	0.849014235780259
1997	0.95244837003681
1998	1.08426989911864
1999	1.19714298780615
2000	1.33473617966922
2001	1.51590998769133
2002	1.71114259849648
2003	1.94876243235517
2004	2.20208726707438
2005	2.456152764388
2006	2.74772140380629
2007	3.40950210445459
2008	4.28033320933119
2009	5.43780370482019
2010	4.93816529340138
2011	4.46040168841721
2012	4.19291824838657
2013	3.81635255617612
2014	3.59718632316834
2015	3.5516472875866
2016	3.33120123465177
2017	3.23943416171367
2018	3.13451756750726
2019	3.05750994187825
2020	3.09245939578101
2021	2.98819937822673
2022	2.89163320742292