Year % of GDP 1999 28.537925151036813 2000 34.25029478635413 2001 41.197323719609095 2002 40.59176623252148 2003 42.68488201485637 2004 44.82197798059332 2005 45.76526530104299 2006 43.38583856304087 2007 43.25889915814764 2008 45.66203142128774 2009 56.313208741165546 2010 65.50421153046186 2011 72.06742645354866 2012 76.51363871637632 2013 87.51521464178762 2014 93.31039866173528 2015 95.58739620267035 2016 93.09374884652138 2017 86.56856784200542 2018 83.31650544405176 2019 81.15496215712031 2020 98.00345844788859 2021 90.32472896347521 2022 82.07979639237642