Year % of GDP 2009 21.529879088060415 2010 27.815697579773264 2011 36.3814480131175 2012 41.388461947709345 2013 43.14971373222922 2014 51.30102873725577 2015 48.259976109421274 2016 54.37077685133849 2017 58.2780692643235 2018 62.36139161024702 2019 65.43828659058676 2020 83.40406084377632 2021 74.52845903057202 2022 64.99206835955775 2023 68.48173300503866