Year % of total population ages 15+ (modeled ILO estimate) 1991 72.066 1992 73.767 1993 75.778 1994 77.7 1995 78.961 1996 79.029 1997 78.734 1998 78.13 1999 77.674 2000 76.854 2001 74.639 2002 72.51 2003 70.576 2004 67.984 2005 66.551 2006 64.83 2007 61.874 2008 60.882 2009 61.023 2010 60.865 2011 61.153 2012 61.593 2013 61.888 2014 62.705 2015 63.433 2016 64.632 2017 65.183 2018 65.675 2019 68.519 2020 67.538 2021 68.244 2022 70.007 2023 70.218