Year	% (modeled ILO estimate)
1991	63.106
1992	62.892
1993	62.664
1994	62.542
1995	62.227
1996	62.361
1997	62.383
1998	62.108
1999	61.687
2000	61.215
2001	60.973
2002	60.244
2003	59.764
2004	59.422
2005	59.759
2006	59.663
2007	60.132
2008	60.596
2009	61.105
2010	62.045
2011	59.678
2012	60.202
2013	60.779
2014	61.531
2015	60.377
2016	60.103
2017	59.889
2018	59.699
2019	58.814
2020	55.349
2021	55.369
2022	58.842
2023	59.22