Year	% of GNI
2000	4.908339800385292
2001	6.769496886640543
2002	7.205024020053029
2003	6.667855114749646
2004	8.182023822191425
2005	4.057243703268314
2006	5.150834899856717
2007	4.8621256038157235
2008	4.600345400590104
2009	7.263518264266967
2010	8.015509460598546
2011	7.3578602318692425
2012	9.299285168104939
2013	10.135909995970083
2014	13.466440885960079
2015	14.653048488614795
2016	15.83232559943903
2017	16.9747761989011
2018	17.437548028555863
2019	19.932158325482064
2020	20.19937011845917