Year	% of total population ages 15+ (modeled ILO estimate)
1991	39.243
1992	39.016
1993	39.219
1994	39.374
1995	39.441
1996	39.51
1997	39.506
1998	39.504
1999	39.475
2000	39.4
2001	38.8
2002	38.4
2003	37.4
2004	37.849
2005	38.3
2006	37.7
2007	39.8
2008	39.5
2009	40.1
2010	39.5
2011	39
2012	38
2013	37.1
2014	36.4
2015	37.66
2016	38.937
2017	40.23
2018	39.18
2019	39.24
2020	39.95
2021	38.67
2022	39.264
2023	39.441