Year % of total population ages 15-64 (modeled ILO estimate) 1991 76.618 1992 75.774 1993 75.536 1994 75.37 1995 75.138 1996 75.072 1997 75.372 1998 75.74 1999 76.321 2000 76.668 2001 76.883 2002 77.93 2003 78.665 2004 78.614 2005 78.19 2006 78.141 2007 78.678 2008 78.778 2009 78.326 2010 78.168 2011 78.121 2012 78.101 2013 78.323 2014 78.026 2015 78.209 2016 78.344 2017 78.646 2018 78.607 2019 79.132 2020 77.693 2021 79.439 2022 79.762