Year % of total population ages 15+ (modeled ILO estimate) 1991 45.64 1992 45.57 1993 47.12 1994 46.61 1995 46.1 1996 46.88 1997 47.7 1998 47.55 1999 47.33 2000 45.94 2001 46.07 2002 46.2 2003 46.71 2004 46.67 2005 47.7 2006 47.23 2007 46.13 2008 44.8 2009 43.2 2010 41.9 2011 40.5 2012 40.38 2013 40.26 2014 40.14 2015 40.02 2016 40.1 2017 40 2018 40.5 2019 40.9 2020 40.6 2021 40.57 2022 41.595 2023 41.532