Year % of total population ages 15+ (modeled ILO estimate) 1991 78.943 1992 78.714 1993 78.484 1994 78.252 1995 78.018 1996 77.782 1997 77.544 1998 77.304 1999 77.063 2000 76.82 2001 76.273 2002 75.717 2003 75.152 2004 74.579 2005 73.997 2006 73.406 2007 72.807 2008 72.2 2009 71.584 2010 70.96 2011 70.86 2012 70.41 2013 69.97 2014 69.65 2015 69.3 2016 68.88 2017 68.35 2018 67.81 2019 67.38 2020 66.02 2021 67.11 2022 66.9 2023 66.382