Year	% of total population ages 15+ (modeled ILO estimate)
1991	61.437
1992	61.382
1993	61.309
1994	61.264
1995	61.234
1996	61.217
1997	61.229
1998	61.34
1999	61.352
2000	61.308
2001	61.255
2002	61.144
2003	61.015
2004	60.882
2005	60.768
2006	60.678
2007	60.626
2008	60.13
2009	60.424
2010	60.413
2011	61.637
2012	62.7
2013	64.214
2014	64.508
2015	64.719
2016	64.606
2017	64.724
2018	65.127
2019	65.597
2020	65.278
2021	65.711
2022	65.271
2023	65.024