Year % of total population ages 15+ (modeled ILO estimate) 1991 80.373 1992 80.385 1993 80.365 1994 80.353 1995 80.376 1996 80.452 1997 80.536 1998 80.621 1999 80.685 2000 80.716 2001 80.78 2002 80.807 2003 80.809 2004 80.806 2005 80.81 2006 79.691 2007 78.524 2008 77.309 2009 76.046 2010 74.737 2011 73.38 2012 72.466 2013 71.534 2014 70.582 2015 69.612 2016 68.625 2017 67.62 2018 68.024 2019 68.416 2020 68.27 2021 68.318 2022 68.907 2023 68.966