Year Percent of GDP 2011 21.034 2012 31.618 2013 25.336 2014 36.391 2015 41.302 2016 56.912 2017 39.124 2018 44.917 2019 42.693 2020 54.881 2021 45.9 2022 49.579 2023 51.7 2024 53.577