Year	% of GNI
1970	16.8916316383661
1971	19.895099697153
1972	27.226453903842
1973	33.0344497821857
1974	22.3060279168153
1975	26.0167695933388
1976	24.3184740551015
1977	24.7955320299584
1978	20.3587710732091
1979	24.2800492743757
1980	24.0541377634623
1981	16.7757069005148
1982	24.98381022037
1983	21.3736101168579
1984	12.0588970877852
1985	11.7042572529927
1986	16.9718765510549
1987	20.7767768643331
1988	19.2166753411684
1989	20.1469106683926
1990	15.7788730176896
1991	15.3292382333586
1992	14.8568595312111
1993	12.4025930920594
1994	11.0904355566453
1995	9.79012430024767
1996	7.74385552271005
1997	6.22414669135359
1998	6.31370728687481
1999	5.19710668336175
2000	4.63205696586453
2001	4.15085285726269
2002	3.78201306135566
2003	5.21038786256956
2004	3.05560203206537
2005	3.50458429356646
2006	3.87211436478834
2007	4.6118417339237
2008	4.24612581035707
2009	3.58198640388612
2010	3.0323459726144
2011	2.32274601381527
2012	2.37469392527575
2013	2.1838758948366
2014	2.5910393348203
2015	1.82181949290526
2016	1.65836828419237
2017	2.07385353679304
2018	2.04297185057948
2019	1.83782212605493
2020	1.89998083501388
2021	1.75101701637688