Year	% of GNI
1970	1.8069187402463602
1971	1.9349000109561207
1972	1.964788974252898
1973	2.7297491721461986
1974	1.9338620112476823
1975	2.2087770130571562
1981	5.40573633111015
1982	5.261431308750072
1983	4.76578733157476
1985	4.821415069825154
1991	4.017840413269753
1992	4.128586660596276
1993	3.895631350230458
1994	5.759920094482172
1995	6.716646647897223
1996	5.1800473938473415
1997	4.281740486817689
1998	4.702445669101912
1999	4.666623491597625
2000	4.065286420066732
2001	4.068753008484584
2002	3.666197128099652
2003	3.0191669751538828
2004	2.897333272612077
2005	2.752787082495447
2006	2.8067319772511587
2007	2.674860872811693
2008	1.1107720409780582
2009	1.4455068485143463
2010	1.0295633841125373
2011	1.0365066157305656
2012	1.25233595418119
2013	1.2880634569233043
2014	1.659682519865716
2015	1.7506822502623094
2016	2.412673803834683
2017	2.2917860404385912
2018	2.8969104553275433
2019	3.1258903915831753
2020	2.932367321922178
2021	3.5537905515257404
2022	3.387123724422739