Year % of GDP 2011 15.91091492776886 2012 13.029439696106362 2013 13.42841266901278 2014 19.910873440285204 2015 12.709087773754096 2016 12.641925097441112 2017 13.188092466322967 2018 18.24491819533961 2019 17.02596380802518 2020 10.665990534144692 2021 13.666987487969202 2022 18.422575976845152