Year	% of GNI
1971	2.276269400228736
1972	3.3994836860484052
1973	4.8967542584335835
1974	4.548547538392416
1975	5.386756581808193
1976	5.633623816819812
1977	7.251458658340795
1978	6.165029348816762
1979	6.243753447152224
1980	7.90529791159804
1981	6.482303961478353
1982	8.236464287650355
1983	6.714555626186981
1984	5.493395686517549
1985	4.129485637354942
1986	4.773784399726844
1987	5.558757963017897
1988	5.716997627472325
1989	5.477878780595396
1990	6.695873210083871
1991	6.0055781129125965
1992	7.236346375404313
1993	9.079892889296934
1994	12.892691060796373
1995	12.715737485111587
1996	13.316648532619416
1997	12.217545418601762
1998	11.842050512796808
1999	7.618056714617415
2000	13.201051493764306
2001	12.191811289974844
2002	12.878498978710676
2003	15.578105153556352
2004	12.331144026561011
2005	11.344267864436066
2006	7.020756908162325
2007	8.083565490597021
2008	8.437442642383203
2009	9.90671511079512
2010	8.970625148776431
2011	12.86724791095639
2012	12.25193684310276
2013	8.69817778983593
2014	10.65593378104291
2015	9.889143859597404
2016	8.20810576989278
2017	9.22657805505346
2018	8.106048727860589
2019	7.97140422146429
2020	7.166315627998189
2021	10.821799021388399