Year % of GDP 2010 9.522963251340776 2011 8.80131007226425 2012 10.498113846588948 2013 10.840639153864197 2014 12.64696962669182 2015 19.307916061599016 2016 16.769425274876173 2017 16.93035825956609 2018 21.99223693628346 2019 18.48304694775193 2020 23.715760502438126 2021 22.41204058154569