Year % of GDP 2012 1.3429382425814678 2013 1.6911047558447472 2014 1.5035133108497476 2015 1.7490444272585703 2016 1.9564701845176398 2017 1.9758497899178251 2018 1.7940801566185673 2019 1.9603554097456375 2020 4.6375282980100705 2021 2.7945360678349758 2022 2.5430135118275823