Year Percent of GDP (Units) 2011 23.603 2012 -5.176 2013 8.953 2014 18.190 2015 13.532 2016 36.944 2017 23.878 2018 22.942 2019 21.815 2020 17.127 2021 51.716 2022 53.295 2023 28.702 2024 29.040 2025 30.071 2026 29.300 2027 29.601 2028 25.559 2029 22.650