Year % of total population ages 15+ (modeled ILO estimate) 1991 49.878 1992 50.236 1993 50.594 1994 50.952 1995 51.31 1996 52.01 1997 52.709 1998 53.408 1999 54.105 2000 54.8 2001 54.501 2002 54.202 2003 53.902 2004 53.603 2005 53.302 2006 53.002 2007 52.702 2008 52.401 2009 52.1 2010 53.029 2011 53.957 2012 54.881 2013 55.803 2014 56.72 2015 57.633 2016 58.54 2017 60.263 2018 61.961 2019 63.63 2020 59.705 2021 61.711 2022 63.579 2023 63.765