Year	% of total employment (modeled ILO estimate)
1991	3.4587450746311
1992	3.5211746361209
1993	3.53160815225847
1994	3.60068197578926
1995	3.60618206426739
1996	3.65114160507059
1997	3.68276439731631
1998	4.04588229947575
1999	3.83564706420707
2000	3.89223666587369
2001	3.70176905339153
2002	3.77914103300617
2003	3.77320690328441
2004	3.99230720464651
2005	3.95416932151618
2006	4.03021416208035
2007	4.0396246530273
2008	4.06003476834229
2009	4.1191892067027
2010	4.22970540982657
2011	4.21651065417205
2012	4.16975639279334
2013	4.19723049518464
2014	4.12979941334144
2015	3.92960926386311
2016	3.952639138649
2017	3.99599933487143
2018	4.0488326744766
2019	4.02620436044956
2020	3.82282255513589
2021	4.028246068901
2022	3.90983388400367