Year % of GDP 2010 47.81572941307336 2011 49.489480793531634 2012 48.76065114418076 2013 48.49477771818176 2014 48.99720735367762 2015 48.654415082873484 2016 48.81864418251192 2017 49.18508226183216 2018 48.776310801985666 2019 48.1756565161956 2020 47.746214796925344 2021 47.05070549296813 2022 47.18513588435331