Year % of total population ages 15+ (modeled ILO estimate) 1991 56.916 1992 57.17 1993 56.306 1994 55.438 1995 54.567 1996 53.693 1997 52.817 1998 51.939 1999 51.06 2000 50.18 2001 51.37 2002 50.82 2003 49.92 2004 50.55 2005 49.69 2006 51.29 2007 52.6 2008 53.81 2009 53.02 2010 53.39 2011 52.51 2012 53.08 2013 53.9 2014 54.14 2015 54.07 2016 53.33 2017 55.35 2018 55.32 2019 56.58 2020 55.55 2021 55.26 2022 56.6 2023 56.087