Year % of total labor force with advanced education 2005 20.686 2006 21.19 2007 20.606 2008 21.533 2009 21.298 2010 22.501 2011 22.929 2012 22.458 2013 23.474 2014 22.653 2015 21.161 2016 19.617 2017 18.963 2018 17.93 2019 14.28 2020 13.847 2021 11.736 2022 9.586