Year % of total population ages 15-64 (modeled ILO estimate) 1991 52.232 1992 51.927 1993 51.978 1994 51.246 1995 50.491 1996 50.76 1997 51.027 1998 51.282 1999 51.897 2000 52.512 2001 51.55 2002 50.588 2003 49.627 2004 48.884 2005 48.14 2006 47.372 2007 45.612 2008 45.113 2009 44.617 2010 44.388 2011 45.144 2012 40.852 2013 39.516 2014 39.854 2015 40.118 2016 40.272 2017 40.37 2018 40.413 2019 40.411 2020 38.632 2021 38.931 2022 40.325