Year	% of total population ages 15+ (modeled ILO estimate)
1991	63.63
1992	63.738
1993	63.847
1994	63.955
1995	64.063
1996	62.313
1997	63.233
1998	63.353
1999	63.973
2000	64.299
2001	64.623
2002	65.493
2003	65.353
2004	65.883
2005	66.563
2006	66.233
2007	65.843
2008	65.623
2009	65.803
2010	64.548
2011	63.273
2012	63.79
2013	63.72
2014	63.51
2015	63.81
2016	63.88
2017	64.18
2018	64.23
2019	64.67
2020	60.29
2021	62.27
2022	63.35
2023	62.782