Year % of total labor force with advanced education 2000 4.601 2001 3.985 2002 7.52 2003 5.555 2004 4.8 2005 4.483 2006 3.949 2007 4.345 2008 4.502 2009 6.486 2010 5.143 2011 4.282 2012 4.32 2013 4.023 2014 4.086 2015 4.806 2016 6.038 2017 5.814 2018 5.276 2019 5.321 2021 6.34 2022 5.213 2023 5.501