Year	% (modeled ILO estimate)
1991	53.225
1992	53.222
1993	53.117
1994	53.264
1995	53.559
1996	54.245
1997	54.743
1998	55.164
1999	55.512
2000	55.845
2001	56.151
2002	56.298
2003	56.575
2004	57.628
2005	58.595
2006	58.958
2007	59.546
2008	59.046
2009	58.125
2010	58.646
2011	59.735
2012	60.952
2013	61.224
2014	62.033
2015	62.052
2016	62.702
2017	63.226
2018	61.797
2019	61.408
2020	60.295
2021	60.384
2022	62.051
2023	62.455