Year	% of total population ages 15+ (modeled ILO estimate)
1991	56.5
1992	55.66
1993	56.54
1994	57.02
1995	58.03
1996	55.97
1997	58.13
1998	59.69
1999	59.69
2000	58.87
2001	60.23
2002	59.76
2003	60.04
2004	58.87
2005	61.31
2006	60.65
2007	61.43
2008	60.91
2009	60.48
2010	59.21
2011	60.62
2012	64.33
2013	63.66
2014	64.19
2015	62.81
2016	59.69
2017	59.85
2018	62.21
2019	64.26
2020	60.62
2021	61.76
2022	61.49
2023	57.586