Year % of total population ages 15+ (modeled ILO estimate) 1991 59.105 1992 58.9 1993 59.844 1994 60.78 1995 62.92 1996 64.317 1997 65.69 1998 66.85 1999 68.16 2000 65.78 2001 68.79 2002 69.905 2003 70.998 2004 72.066 2005 73.11 2006 76.14 2007 78.23 2008 78.22 2009 78.58 2010 79.24 2011 78.65 2012 78.46 2013 77.86 2014 77.06 2015 75.9 2016 75.38 2017 77 2018 77.18 2019 77.36 2020 68.92 2021 71.93 2022 72.51 2023 72.579