Year	% of GNI
1990	4.594125349803829
1991	4.539692698010473
1992	3.802665476249112
1993	3.705517286572339
1994	3.6086730599777743
1995	3.465674360536984
1996	3.240607370507859
1997	3.0985154507508272
1998	2.959640774585664
1999	2.8259645864796514
2000	2.753044388261482
2001	2.633559829272419
2002	2.521324776991852
2003	2.3895715078022897
2004	2.2585260298947873
2005	2.1361120537419986
2006	2.0268912298910418
2007	1.9433575756279116
2008	2.5531032561369034
2009	2.3076369018919514
2010	2.170252324961277
2011	2.0146548948636314
2012	1.9470526661464678
2013	1.9226732704635572
2014	1.8103279220762418
2015	1.7327988544589124
2016	1.6248278054704508
2017	1.5683759842860385
2018	1.5189067711397928
2019	1.4656122899680335
2020	1.4411676891223328
2021	1.3699786136219019