Year	% of GDP
2005	32.0072777198639
2006	33.1622974584836
2007	33.2333546430114
2008	35.8855992180815
2009	17.1166757506339
2010	23.4071228643054
2011	27.0266253548492
2012	24.0249535923377
2013	16.2893365574469
2014	19.6388638920669
2015	16.3848737878732
2016	13.6931228732269