Year % of GDP 2005 7.362421753232107 2006 11.825032898485702 2007 13.070581204595838 2008 3.4531866460510625 2009 8.543636162857277 2010 19.940357952442294 2011 19.168138341315654 2012 8.158000799907612 2013 12.539249751772644 2014 15.39313468833689 2015 12.309062850905075 2016 10.854372326875223 2017 21.649945297508335 2018 15.84159521089277 2019 14.487707948583212 2020 22.441779002688882 2021 26.45907904783063