Year	% (modeled ILO estimate)
1991	53.297379127637434
1992	52.8659813290093
1993	51.06166261850662
1994	51.1821996743079
1995	50.81756873053873
1996	51.628865979381445
1997	52.46494726009776
1998	53.33018114228882
1999	54.222266316120184
2000	54.98455166973443
2001	55.750665643019325
2002	56.518703727756844
2003	57.28786754026402
2004	58.06022319138019
2005	58.833272284244565
2006	59.60701798794476
2007	60.38320077960454
2008	61.15692153923038
2009	61.93240013656538
2010	62.7078128373585
2011	63.48323217460609
2012	64.25600633769558
2013	65.02688375615297
2014	65.79771693623687
2015	66.56483062269746
2016	67.3304340055405
2017	67.54090543319523
2018	68.52081435122258
2019	68.63307632538401
2020	68.34186787577087
2021	69.24546023794615
2022	69.39590379556559
2023	69.69257404894483