Year % of total population ages 15+ (modeled ILO estimate) 1991 59.67 1992 59.632 1993 59.571 1994 59.498 1995 59.421 1996 59.261 1997 59.105 1998 58.955 1999 58.807 2000 58.66 2001 58.627 2002 58.587 2003 58.545 2004 58.511 2005 58.487 2006 58.498 2007 58.506 2008 58.51 2009 58.507 2010 58.491 2011 58.477 2012 58.446 2013 58.398 2014 58.333 2015 58.253 2016 58.168 2017 58.07 2018 57.959 2019 57.835 2020 57.286 2021 57.595 2022 57.869 2023 57.934