Year	% of total employment (modeled ILO estimate)
1991	6.92343319737338
1992	6.74746859096157
1993	6.468050935217853
1994	6.357262490888233
1995	6.222988833749273
1996	5.998451316540945
1997	5.848678678743861
1998	5.752431640992485
1999	5.55290483849801
2000	5.306014601662539
2001	5.0930743489260335
2002	4.928623232958061
2003	4.793387215704285
2004	4.582115530666032
2005	4.443393580387846
2006	4.251135447752059
2007	4.069382494054688
2008	3.8755273413479117
2009	3.8794983833563292
2010	3.8475244586503874
2011	3.7444176828333036
2012	3.6722461361967795
2013	3.5523491789334853
2014	3.4576457697699396
2015	3.4359474830596586
2016	3.3925016803234405
2017	3.3285736286763887
2018	3.2688911633235906
2019	3.213744708841313
2020	3.219298251140786
2021	3.1820999113237405
2022	2.692761516703553
