Year Percent of GDP (Units) 2011 5.583 2012 10.734 2013 12.844 2014 19.403 2015 11.878 2016 17.342 2017 14.269 2018 11.971 2019 19.736 2020 35.994 2021 61.085 2022 43.551 2023 26.989 2024 25.116 2025 24.334 2026 23.179 2027 23.484 2028 22.517 2029 21.291