Year	% of total employment (modeled ILO estimate)
1991	0.238021318431129
1992	0.64538798373102
1993	1.3156439263038
1994	1.78014413331996
1995	2.26395378660203
1996	2.79142913308433
1997	3.43226409065899
1998	4.73595624390477
1999	5.09953700668312
2000	5.27461682140451
2001	5.17732156455714
2002	5.07545383134116
2003	4.96786270787008
2004	4.85660706823675
2005	4.74971135793523
2006	4.65148247612138
2007	4.72656787385333
2008	4.78306074028184
2009	4.84566413272259
2010	4.91141133996762
2011	5.31627337404662
2012	5.73696049788066
2013	6.14474075109583
2014	5.86457726676734
2015	5.6086256999875
2016	5.59306845671082
2017	5.54987739681032
2018	5.5494602980351
2019	5.57385493834945
2020	5.57530490844188
2021	5.57737284804283
2022	5.57018616797333