Year Percent of GDP 2004 74.588 2005 73.071 2006 65.428 2007 73.943 2008 71.636 2009 88.92 2010 72.309 2011 70.09 2012 89.273 2013 112.81 2014 103.787 2015 136.344 2016 137.978 2017 122.217 2018 161.031 2019 113.354 2020 105.904 2021 103.586 2022 102.316 2023 100.639 2024 100.001