Year	% of total population ages 15+ (modeled ILO estimate)
1991	56.529
1992	57.334
1993	58.1
1994	58.246
1995	57.742
1996	57.267
1997	56.684
1998	56.263
1999	55.987
2000	55.531
2001	55.273
2002	55.386
2003	55.675
2004	55.863
2005	56.044
2006	56.392
2007	56.936
2008	57.671
2009	58.573
2010	60.377
2011	62.851
2012	65.361
2013	67.414
2014	68.564
2015	69.356
2016	70.195
2017	70.518
2018	70.346
2019	69.857
2020	66.304
2021	66.42
2022	67.707
2023	68.307