Year % of total population ages 15+ (modeled ILO estimate) 1991 57.895 1992 57.821 1993 57.717 1994 57.763 1995 57.91 1996 58.45 1997 58.966 1998 59.48 1999 59.832 2000 60.183 2001 60.532 2002 60.881 2003 61.229 2004 61.575 2005 61.92 2006 62.264 2007 62.607 2008 62.949 2009 63.289 2010 63.628 2011 63.966 2012 64.302 2013 64.637 2014 64.97 2015 65.113 2016 65.246 2017 65.383 2018 65.186 2019 64.977 2020 64.332 2021 64.425 2022 65.31 2023 65.567