Year	% (modeled ILO estimate)
1991	51.039821657607035
1992	52.91660950813175
1993	53.504451310918725
1994	54.20543724100244
1995	55.21722647660929
1996	57.242572304330665
1997	57.70677266473017
1998	60.26999056402763
1999	61.894327510647486
2000	62.13037009484843
2001	61.69221355841793
2002	62.60034876596548
2003	63.40679162418633
2004	65.29539176293319
2005	65.58020504608042
2006	65.94741130750909
2007	65.94191498064882
2008	65.97141327960205
2009	67.93633196072221
2010	69.41803330993555
2011	70.70890042103201
2012	72.1939365887526
2013	72.31262245541792
2014	74.19202482963362
2015	75.89562668302825
2016	76.34975521243452
2017	75.99808094307939
2018	75.30299134310448
2019	75.68811277666168
2020	75.50080268025407
2021	76.70432683899402
2022	76.29170056956876
2023	76.57425608350844
