Year % of GDP 2014 29.448606667432003 2015 30.066013239814964 2016 28.13084677216189 2017 27.97023501736272 2018 28.0042382526007 2019 25.81134199939084 2020 24.629473738035973 2021 27.311949649406024 2022 29.87914900553968