Year	% of total population ages 15+ (modeled ILO estimate)
1991	65.62
1992	65.857
1993	66.093
1994	66.328
1995	66.562
1996	66.795
1997	67.028
1998	67.26
1999	67.491
2000	67.721
2001	67.95
2002	67.797
2003	67.643
2004	67.489
2005	67.335
2006	67.18
2007	67.024
2008	66.869
2009	66.713
2010	66.557
2011	66.4
2012	65.801
2013	65.196
2014	64.586
2015	63.972
2016	63.353
2017	62.73
2018	65.39
2019	64.18
2020	63.623
2021	63.75
2022	64.375
2023	64.338