Year	% (modeled ILO estimate)
1991	65.692
1992	65.295
1993	65.243
1994	64.774
1995	64.158
1996	63.216
1997	61.601
1998	61.455
1999	61.745
2000	61.769
2001	61.914
2002	61.624
2003	61.361
2004	60.376
2005	62.354
2006	65.282
2007	68.051
2008	70.361
2009	70.884
2010	69.088
2011	68.191
2012	68.461
2013	68.991
2014	69.904
2015	70.756
2016	70.601
2017	70.004
2018	69.303
2019	68.003
2020	66.04
2021	57.116
2022	58.766
2023	60.259