Year Percent of GDP (Units) 2014 -24.680 2015 -14.724 2016 -12.890 2017 -11.746 2018 -10.286 2019 -2.388 2020 -15.811 2021 -22.601 2022 -19.330 2023 -17.609 2024 -16.779 2025 -14.860 2026 -12.439 2027 -10.104 2028 -9.373 2029 -8.852