Year	% (modeled ILO estimate)
1991	59.086
1992	58.895
1993	58.68
1994	58.842
1995	58.646
1996	58.708
1997	58.607
1998	58.565
1999	58.778
2000	57.801
2001	56.792
2002	55.778
2003	54.758
2004	53.733
2005	52.705
2006	49.795
2007	48.323
2008	49.444
2009	50.437
2010	51.461
2011	49.891
2012	48.112
2013	53.175
2014	53.797
2015	54.588
2016	53.382
2017	54.972
2018	57.828
2019	55.196
2020	54.382
2021	54.193
2022	54.012
2023	54.075