Year	% of GNI
1970	2.8208084084470006
1971	2.8955654354738525
1972	2.994526238783256
1973	2.7010852192374335
1974	2.497747645172086
1975	2.494261661445499
1976	2.837317355538711
1977	2.855442650729957
1978	2.913020728768383
1979	2.8969174916260485
1980	2.833836770375999
1981	2.849450354050774
1982	2.9136891311245154
1983	2.924741471097332
1984	2.774215850461887
1985	2.68284837798342
1986	2.893251583554645
1987	2.867843886754659
1988	2.738613687473716
1989	2.6245893623975047
1990	2.7560428805348165
1991	2.7858524534999383
1992	2.8595868862112708
1993	2.791914737068095
1994	2.620342092880462
1995	2.5080689627087756
1996	2.380487899547625
1997	2.374277712173339
1998	2.2959330461990874
1999	2.30492956677082
2000	2.2404266509094373
2001	2.388273828305488
2002	2.445460973541908
2003	2.6226678562344
2004	2.6620303558771052
2005	2.691408318659639
2006	2.7063783777179444
2007	2.733604022901303
2008	2.773967773279707
2009	2.794656131854486
2010	2.755349511782655
2011	2.980382052400211
2012	2.995015310090055
2013	2.9484536106535626
2014	2.909903700052016
2015	2.8072071380145758
2016	2.7979788934095082
2017	2.7487796863513414
2018	2.6403653929628508
2019	2.5599447208909787
2020	2.5563666811717614
2021	2.564267602197243