Year % of total population ages 15+ (modeled ILO estimate) 1991 70.617 1992 70.415 1993 70.219 1994 70.02 1995 69.814 1996 69.751 1997 69.71 1998 69.686 1999 69.684 2000 69.706 2001 69.715 2002 69.749 2003 69.806 2004 69.868 2005 69.931 2006 69.869 2007 69.809 2008 69.75 2009 69.7 2010 68.15 2011 67.41 2012 64.4 2013 65.3 2014 62.61 2015 63.14 2016 62.96 2017 62.78 2018 62.6 2019 66.36 2020 67.83 2021 69.09 2022 69.909 2023 69.521