Year % of total population ages 15+ (modeled ILO estimate) 1991 83.93 1992 83.316 1993 82.682 1994 82.03 1995 81.36 1996 80.669 1997 79.96 1998 79.231 1999 78.483 2000 77.716 2001 76.929 2002 76.123 2003 75.298 2004 74.454 2005 73.591 2006 72.71 2007 71.875 2008 71.024 2009 70.159 2010 69.279 2011 68.384 2012 67.476 2013 66.554 2014 65.62 2015 65.573 2016 65.528 2017 65.478 2018 65.421 2019 65.356 2020 64.735 2021 65.141 2022 65.264 2023 65.09