Year % of GDP 2013 27.884503022407188 2014 27.38400797849605 2015 29.76112767206675 2016 25.385366394902466 2017 21.094443688703848 2018 21.670516042691354 2019 20.53461520600654 2020 12.46565636585428 2021 9.04121866608525 2022 18.544400306278714