Year	% of total population ages 15+ (modeled ILO estimate)
1991	57.16
1992	57.326
1993	57.46
1994	57.572
1995	57.684
1996	57.795
1997	57.907
1998	58.018
1999	58.13
2000	58.241
2001	58.352
2002	58.463
2003	58.574
2004	58.685
2005	58.796
2006	58.907
2007	59.018
2008	59.128
2009	59.239
2010	59.349
2011	59.46
2012	59.57
2013	59.793
2014	60.015
2015	60.237
2016	60.458
2017	60.679
2018	60.9
2019	60.846
2020	60.268
2021	60.579
2022	60.781
2023	60.866