Year % of GDP 2012 4.96868664184247 2013 3.4899741587563864 2014 3.259845666640126 2015 3.3281850765951195 2016 3.543382939179503 2017 3.140577059196946 2018 3.74841849225416 2019 3.6056567145954515 2020 13.16702753831471 2021 5.187663276645433 2022 3.978482737116922