Year	% of total population ages 15+ (modeled ILO estimate)
1991	57
1992	55.99
1993	52.15
1994	54.65
1995	54.13
1996	53.73
1997	52.55
1998	52.8
1999	52.7
2000	49.94
2001	49.81
2002	49.58
2003	48.33
2004	46.31
2005	46.43
2006	45.52
2007	45.54
2008	46.19
2009	47.06
2010	48.13
2011	49.31
2012	49.38
2013	50.29
2014	50.49
2015	51.24
2016	51.96
2017	52.79
2018	53.16
2019	52.91
2020	49.3
2021	51.36
2022	53.084
2023	53.366