Year Percent of GDP (Units) 2009 29.532 2010 27.884 2011 25.682 2012 25.050 2013 24.573 2014 26.856 2015 40.260 2016 45.923 2017 47.990 2018 47.462 2019 41.125 2020 41.516 2021 40.168 2022 67.934 2023 60.788 2024 56.516 2025 51.707 2026 46.332 2027 41.145 2028 35.660 2029 30.892