Year	% of total population ages 15+ (modeled ILO estimate)
1991	64.132
1992	63.366
1993	63.785
1994	65.881
1995	67.204
1996	67.312
1997	66.788
1998	66.328
1999	66.021
2000	65.93
2001	66.093
2002	66.509
2003	67.147
2004	67.939
2005	68.313
2006	68.096
2007	67.898
2008	67.946
2009	68.223
2010	68.701
2011	69.544
2012	70.524
2013	71.299
2014	71.86
2015	72.838
2016	73.231
2017	73.224
2018	73.285
2019	73.04
2020	69.496
2021	70.621
2022	71.546
2023	71.542