Year	% (modeled ILO estimate)
1991	59.166
1992	59.105
1993	58.789
1994	59.035
1995	59.305
1996	59.675
1997	59.729
1998	59.377
1999	59.247
2000	59.469
2001	59.093
2002	59.016
2003	58.812
2004	58.727
2005	58.623
2006	58.663
2007	58.667
2008	58.134
2009	58.213
2010	58.365
2011	59.757
2012	60.756
2013	62.185
2014	62.65
2015	62.712
2016	62.384
2017	62.517
2018	62.978
2019	63.458
2020	62.314
2021	63.028
2022	62.903
2023	62.677