Year	% of total population ages 15+ (modeled ILO estimate)
1991	60.012
1992	60.729
1993	61.478
1994	61.977
1995	61.511
1996	61.985
1997	62.734
1998	63.032
1999	62.519
2000	62.306
2001	61.672
2002	60.236
2003	61.079
2004	61.94
2005	61.51
2006	61.8
2007	61.117
2008	60.43
2009	60.78
2010	60.19
2011	60.65
2012	60.36
2013	59.96
2014	59.44
2015	59.23
2016	59.02
2017	58.81
2018	59.6
2019	60.29
2020	56.02
2021	60.36
2022	60.465
2023	60.77