Year	% of total population ages 15+ (modeled ILO estimate)
1991	58.207
1992	58.559
1993	60.533
1994	62.234
1995	63.716
1996	64.993
1997	66.066
1998	65.465
1999	65.366
2000	65.179
2001	64.604
2002	63.845
2003	61.404
2004	62.422
2005	63.645
2006	65.606
2007	68.375
2008	69.549
2009	69.767
2010	69.805
2011	70.679
2012	70.518
2013	70.591
2014	71.09
2015	70.611
2016	69.699
2017	69.379
2018	69.539
2019	69.211
2020	67.447
2021	68.195
2022	67.745
2023	67.929