Year	% of GNI
2008	2.3597709176615163
2009	2.9915125969061735
2010	2.757618874267053
2011	2.242368274919413
2012	2.2499452246994114
2013	1.8043954113332556
2014	1.7111968189378144
2015	1.9603710540656187
2016	2.0462037133958475
2017	2.3951837260534656
2018	2.2267602876030597
2019	2.3011301725272046