Year % of GDP 2010 87.07518277020353 2011 87.17479767728956 2012 86.98599489910063 2013 85.99878444084278 2014 87.37150696258433 2015 82.39776029484726 2016 81.72978155173595 2017 87.19480063235552 2018 86.84786004373633 2019 86.96311344926394 2020 85.12354675795682 2021 87.45972330769337 2022 87.68087274471019