Year	% of GNI
1970	16.95000238451401
1971	19.95855442235933
1972	27.392230991813058
1973	33.332565789181025
1974	23.78217747857401
1975	28.08689049134935
1976	28.398889302346184
1977	29.34915023282815
1978	24.967864712015352
1979	35.749718356559434
1980	34.80269293878027
1981	24.538108509999812
1982	30.790982105030672
1983	29.299177082501956
1984	20.56038901783494
1985	20.94735090812631
1986	23.318479384471683
1987	28.42254360774996
1988	24.971455205489804
1989	28.175480813270056
1990	25.840306027374375
1991	20.400338804151996
1992	19.38681747941708
1993	16.667992805225474
1994	14.667967753979287
1995	13.373924156304284
1996	12.055949668696503
1997	10.375450101136742
1998	9.549038340165303
1999	9.520336360562222
2000	11.718265260522983
2001	9.69198548143946
2002	8.901789880631968
2003	11.056156509698853
2004	10.501719065177728
2005	12.13150842440912
2006	11.917322034107134
2007	11.000232193219762
2008	11.624565877968408
2009	8.31852658120302
2010	8.192641640643311
2011	7.910659134513185
2012	7.578234710387676
2013	6.894529186545547
2014	7.281444637077397
2015	5.756434961646642
2016	4.624536241285502
2017	5.585794427285108
2018	6.519142589956495
2019	5.48265310705204
2020	4.04641218590524
2021	5.9839635622809695