Year	% of GNI
2005	31.2307048727991
2006	31.2363500369073
2007	27.7034071834775
2008	21.773203769041
2009	18.4901269304288
2010	20.3956426496979
2011	19.1241789240435
2012	19.7770824721935
2013	24.5939276445345
2014	28.2698590235959
2015	39.2904527754075
2016	41.2289248604218
2017	43.2044560024662
2018	43.5528694639004
2019	45.568434369775
2020	48.4980598197602
2021	51.3325726112804