Year	% of GNI
1970	0.03094009759388392
1971	0.028611282507670442
1972	0.02776915878346963
1973	0.019940346948508457
1974	0.013295039929819431
1975	0.02117551611107302
1976	0.02150651314820825
1977	0.021091324404339893
1978	0.019548029689668487
1979	0.02516655985660548
1980	0.02379946862128348
1981	0.02247862936837483
1982	0.020391529705407235
1983	0.0233457836969385
1984	0.018946586831849643
1985	0.026365372240097107
1986	0.022704566431094805
1987	0.015207679236412195
1988	0.01264130490241877
1989	0.011220715757145996
1990	0.017791241977986524
1991	0.02088190998485916
1992	0.015428909305115562
1993	0.011691058883432302
1994	0.0092261242642087
1995	0.006101232417417797
1996	0.011986506086086916
1997	0.0015022703311022665
1998	0.0014105785809500504
1999	0.0015764937399670724
2000	0.0022562648456967956
2001	0.003003250157721045
2002	0.003228002666101161
2003	0.0038041862408934647
2004	0.0029111842122197962
2005	0.0038203104387081323
2006	0.004872427957022235
2007	0.00418176468302931
2008	0.005275560385782816
2009	0.006467779209390232
2010	0.005406128933415391
2011	0.011140547785407899
2012	0.009038250277749184
2013	0.008816439441924163
2014	0.011383236568517696
2015	0.008322938728375277
2016	0.011922577707215377
2017	0.009669485926682557
2018	0.006723488281529175
2019	0.003952859590921386
2020	0.006429020019165753
2021	0.00607984961719993