Year	% of total population ages 15+ (modeled ILO estimate)
1991	65.589
1992	65.443
1993	65.275
1994	64.988
1995	64.752
1996	64.514
1997	64.274
1998	64.17
1999	63.902
2000	63.705
2001	63.509
2002	63.304
2003	63.094
2004	62.874
2005	62.628
2006	62.325
2007	62.074
2008	61.819
2009	61.581
2010	61.307
2011	61.055
2012	60.809
2013	60.568
2014	60.348
2015	60.146
2016	59.958
2017	59.78
2018	59.626
2019	59.5
2020	58.935
2021	58.728
2022	59.485
2023	59.619