Year	% (modeled ILO estimate)
1991	65.845
1992	65.478
1993	65.419
1994	70.188
1995	69.575
1996	69.307
1997	69.132
1998	68.553
1999	67.96
2000	67.374
2001	66.79
2002	66.199
2003	65.609
2004	64.994
2005	64.378
2006	63.752
2007	63.117
2008	63.07
2009	62.857
2010	62.203
2011	61.876
2012	61.263
2013	60.93
2014	60.463
2015	60.359
2016	59.834
2017	60.019
2018	59.726
2019	59.432
2020	58.803
2021	57.641
2022	57.253
2023	57.22