Year % of GDP 2003 37.13014674010764 2004 39.84190790812731 2005 41.901022027794404 2006 56.19252804147778 2007 96.38060811377376 2008 36.891668651699796 2009 66.87165538746568 2010 66.5382251534482 2011 46.38295932904467 2012 50.15136757424221 2013 46.2469327291 2014 51.259718834088815 2015 58.69177465221018 2016 58.16825005284513 2017 65.55570596296624 2018 49.48757864797669 2019 60.92238591471313 2020 80.00093448560156 2021 76.99349055752768 2022 64.23924547326678