Year	% of total employment (modeled ILO estimate)
1991	22.0464780323481
1992	21.9482780885363
1993	21.488853728489
1994	21.5258322954029
1995	22.6411869751839
1996	23.7517747365835
1997	24.933201621973
1998	25.181345172968
1999	25.4705706555411
2000	25.8216623441337
2001	26.0425487747673
2002	26.577809991023
2003	27.1566477843518
2004	27.5689063335427
2005	28.1324859881092
2006	28.5468079216617
2007	28.9292010434809
2008	29.4214706640371
2009	29.8211219177875
2010	30.2653434429572
2011	30.7185431124973
2012	30.9238264497466
2013	30.9906818915622
2014	31.089357777967
2015	31.5442922587065
2016	32.2802098153184
2017	32.9593195617385
2018	34.0457024779878
2019	33.6028292224604
2020	34.9551342479586
2021	35.2226854047811
2022	35.6721932900588