Year % of total population ages 15-64 (modeled ILO estimate) 1991 55.752 1992 55.965 1993 56.165 1994 56.251 1995 56.306 1996 56.38 1997 56.467 1998 56.479 1999 56.929 2000 57.007 2001 57.203 2002 57.388 2003 57.565 2004 57.695 2005 57.808 2006 57.749 2007 57.673 2008 57.581 2009 57.698 2010 57.604 2011 57.545 2012 59.076 2013 59.429 2014 62.548 2015 63.643 2016 64.811 2017 65.153 2018 66.815 2019 68.753 2020 64.236 2021 65.599 2022 68.181