Year	% of total employment (modeled ILO estimate)
1991	23.3019913597621
1992	24.1343239160686
1993	24.9761339830965
1994	25.8001589515818
1995	26.6429819292237
1996	27.4982214519316
1997	27.920556326165
1998	28.3505133801267
1999	28.7358974298402
2000	29.1089603046059
2001	30.8744353191137
2002	32.7239102349445
2003	34.5839740220447
2004	35.9668365972171
2005	37.4060293368121
2006	37.4046387253834
2007	36.8535170301493
2008	36.273984767609
2009	35.6815492048993
2010	35.066392616015
2011	34.802300150612
2012	34.4796536610049
2013	34.1119310424109
2014	35.073689459478
2015	35.9872057930085
2016	36.8757266911524
2017	38.9833724424852
2018	39.8230499326238
2019	40.5065282721841
2020	40.4593427201977
2021	40.6594675212071
2022	41.2628288253737
