Year % of GDP 2010 30.701453084044484 2011 31.306473450666555 2012 30.794098961324135 2013 30.836337648656816 2014 32.069399446366496 2015 36.924419825549 2016 36.491601129329815 2017 36.24765387263463 2018 35.453999893748 2019 34.78745283763707 2020 38.4811610303133 2021 31.7938785430396 2022 34.13446097651195