Year % of GDP 2013 21.95377433343763 2014 20.235263365820206 2015 18.533234325599867 2016 16.391991730314288 2017 15.861564465504491 2018 15.628033339465548 2019 14.778018672715854 2020 9.45722585105213 2021 6.107279005708528 2022 16.40260336906585 2023 24.941406244642543