Year	% of total population ages 15+ (modeled ILO estimate)
1991	55.84
1992	56.59
1993	56.69
1994	59.06
1995	59.43
1996	58.83
1997	58.44
1998	58.85
1999	58.99
2000	58.71
2001	58.24
2002	58.96
2003	59.15
2004	58.04
2005	58.46
2006	58.97
2007	59.83
2008	60.08
2009	60.35
2010	60.29
2011	60.36
2012	60.65
2013	60.8
2014	60.6
2015	60.63
2016	61.13
2017	61.1
2018	61.32
2019	61.31
2020	60.81
2021	61.15
2022	61.51
2023	61.703