Year % of total population ages 15-64 (modeled ILO estimate) 1991 57.211 1992 57.43 1993 57.601 1994 57.675 1995 57.829 1996 58.261 1997 58.494 1998 58.554 1999 58.624 2000 58.073 2001 58.793 2002 58.727 2003 58.573 2004 56.998 2005 57.545 2006 57.709 2007 58.665 2008 59.029 2009 59.425 2010 60.589 2011 62.185 2012 64.266 2013 66.675 2014 68.231 2015 69.187 2016 70.96 2017 72.517 2018 74.926 2019 75.937 2020 77.058 2021 78.058 2022 79.85