Year	% of total population ages 15+ (modeled ILO estimate)
1991	63.45
1992	62.28
1993	62.45
1994	62.49
1995	61.97
1996	61.78
1997	61.77
1998	61.99
1999	61.332
2000	60.67
2001	61.43
2002	61.83
2003	61.35
2004	61.27
2005	60.99
2006	61.26
2007	61.22
2008	60.88
2009	60.77
2010	59.59
2011	60.07
2012	60.5
2013	61.22
2014	61.06
2015	61.14
2016	61.05
2017	61.12
2018	61.28
2019	60.67
2020	59.71
2021	59.38
2022	58.21
2023	57.597