Year % of GDP 2010 10.07967316180045 2012 11.092973573660805 2013 10.810248948607562 2014 11.173188926730289 2015 11.333592204676222 2016 11.131745053188281 2017 11.666768568991495 2018 11.704182469842669 2020 11.548117203802219