Year	% of total employment (modeled ILO estimate)
1991	25.86648094577339
1992	25.88309130064573
1993	26.00723625360439
1994	26.162414031198406
1995	26.32608591922782
1996	26.6332397112047
1997	26.880291350170072
1998	27.19753444390327
1999	27.51542324598991
2000	27.80131615687758
2001	28.01854708509883
2002	28.291135465221018
2003	28.647119213141167
2004	29.056246507184763
2005	29.456531213669322
2006	30.084630409419194
2007	30.7796225809363
2008	31.5420403462255
2009	32.12656392217314
2010	32.837481859615224
2011	33.52081884791345
2012	34.13255621899204
2013	34.27627369829675
2014	34.89660619018107
2015	35.38190357059653
2016	35.57029263744986
2017	35.81335913218091
2018	36.25015403330167
2019	36.61765783594035
2020	36.15875125809107
2021	36.32970233043687
2022	36.791112997851435