Year	% of total population ages 15+ (modeled ILO estimate)
1991	57.313
1992	57.432
1993	57.399
1994	57.507
1995	57.858
1996	58.302
1997	58.616
1998	58.931
1999	59.288
2000	59.287
2001	59.882
2002	60.433
2003	60.728
2004	60.613
2005	60.437
2006	60.022
2007	59.652
2008	59.943
2009	60.229
2010	59.995
2011	59.458
2012	59.405
2013	59.331
2014	59.267
2015	59.308
2016	59.247
2017	59.085
2018	58.924
2019	58.795
2020	57.949
2021	58.01
2022	57.969
2023	57.88