Year % of total population ages 15-64 (modeled ILO estimate) 1991 75.26 1992 75.548 1993 75.965 1994 76.481 1995 76.801 1996 76.795 1997 76.705 1998 76.678 1999 76.539 2000 76.275 2001 76.019 2002 75.938 2003 76.263 2004 76.451 2005 76.141 2006 76.452 2007 77.178 2008 77.824 2009 77.503 2010 77.225 2011 77.057 2012 77.007 2013 77.051 2014 77.151 2015 77.291 2016 77.444 2017 77.605 2018 77.779 2019 78.022 2020 77.308 2021 77.825 2022 77.032