Year	% of GNI
1968	3.7985420620419514
1969	4.473436232943902
1970	3.31478205070155
1971	4.023898092090626
1972	3.0143931862540745
1973	4.302191391737174
1974	6.741520582610616
1975	5.0604977413778345
1976	4.20292100672946
1977	4.1505602679544635
1978	6.631696579562252
1979	7.58561058686922
1980	5.9205819906505335
1981	9.904696797399717
1982	7.301043848515613
1983	9.416552959449717
1984	10.775139746131734
1985	7.868151331300021
1986	11.100638905840018
1987	10.561688845642356
1988	9.673046849073787
1989	11.53629204573879
1990	11.28316244679937
1991	8.887997376923462
1992	8.67305268112924
1993	6.870944570581244
1994	12.989121918018512
1995	10.570238346484572
1996	8.846893419527662
1997	7.11175351876695
1998	7.784535859814963
1999	8.245768710892335
2000	7.296914016161653
2001	6.5876222434275435
2002	6.449386795536246
2003	5.283110420364105
2004	10.677816957604842
2005	6.42294944497187
2006	7.472306660985425
2007	5.263184996763304
2008	5.547696217602264
2009	5.538500837995056
2010	5.8630562529936325
2011	6.015135649267789
2012	6.196991814800401
2013	5.347545539036786
2014	5.712236359651344
2015	5.02181639224655
2016	3.9432929773711405
2017	4.449626186801327
2018	4.4370996741895805
2019	6.309220504059941
2020	6.682714604009488
2021	5.180664713793375
2022	5.431297704446764