Year	% of total employment (modeled ILO estimate)
1991	4.48691089938608
1992	4.51115574615927
1993	4.53392802546625
1994	4.55329976334941
1995	4.58917480035492
1996	4.60766585115059
1997	4.62656040623457
1998	4.66003375052735
1999	4.68851366752582
2000	4.70245818283831
2001	4.72118828569422
2002	4.73539554995361
2003	4.76339978720806
2004	4.77027191593744
2005	4.78467241797457
2006	4.81033534909291
2007	4.8012962647109
2008	4.81600270087779
2009	4.8423854279298
2010	4.87844967866007
2011	4.90718557994752
2012	4.92358241648828
2013	4.92400019676324
2014	4.93753139634749
2015	4.93361691157515
2016	4.92600558569548
2017	4.92660301875966
2018	4.92926683260342
2019	4.91928685171886
2020	4.96833216045039
2021	4.98366890037263
2022	4.97275003682427
