Year % of GDP 2010 38.49410768152741 2011 36.950642718298376 2012 39.406316325167204 2013 40.048997931660445 2014 39.633283287671006 2015 39.947204957726655 2016 39.31975328687671 2017 40.48283833289151 2018 40.3416242493595 2019 38.44677841577038 2020 39.27455748834426 2021 42.06132602465289