Year % of total population ages 15+ (modeled ILO estimate) 1991 57.599 1992 57.663 1993 57.627 1994 57.569 1995 57.533 1996 57.51 1997 58.33 1998 59.59 1999 57.88 2000 57.41 2001 58.15 2002 57.46 2003 56.56 2004 58.98 2005 59.28 2006 59.32 2007 59.73 2008 59.51 2009 59.46 2010 59.19 2011 57.95 2012 57.57 2013 57.27 2014 57.71 2015 57.34 2016 56.61 2017 58.43 2018 58.82 2019 58.08 2020 57.79 2021 58.48 2022 58.9 2023 58.521