Year Percent of GDP (Units) 2009 246.684 2010 242.498 2011 188.939 2012 123.079 2013 126.892 2014 112.522 2015 82.201 2016 61.223 2017 77.972 2018 71.056 2019 59.570 2020 56.269 2021 20.521 2022 22.169 2023 20.173 2024 23.379 2025 20.928 2026 18.356 2027 15.601 2028 13.483 2029 11.474