Year	% of total employment (modeled ILO estimate)
1991	14.930352889110452
1992	14.903687362252677
1993	14.90419969278921
1994	14.923973162048886
1995	15.008610669703094
1996	15.146920386024238
1997	15.351100375891484
1998	15.519193972574763
1999	15.72413918643532
2000	15.890736238677162
2001	16.082172994874394
2002	15.77609222206143
2003	15.603133825797922
2004	15.730551379896086
2005	15.806022806966565
2006	16.088161157404002
2007	16.47987696198762
2008	16.926776044940528
2009	17.387578321910016
2010	17.63768837371764
2011	18.036614265743
2012	18.475060922036636
2013	18.721055325942594
2014	18.88702478039576
2015	19.07457884219004
2016	19.11238064000246
2017	19.28596214362979
2018	19.481876778942333
2019	19.59777658698871
2020	19.36611951099647
2021	19.610209092197287
2022	19.91464668186382
