Year	% of GNI
2009	2.9439540819272
2010	13.1450894748164
2011	25.1126392318151
2012	27.8789677183974
2013	26.962223359768
2014	22.3340613509465
2015	22.9306829179847
2016	16.2968021196325
2017	15.5462987846084
2018	17.4163944154274
2019	21.3898955126239