Year	% of GNI
1970	7.444979931720172
1971	6.976648935091609
1972	6.891958727067615
1973	6.7583979534431515
1974	6.5536822708171245
1975	6.907451756222425
1976	6.921440728472276
1977	6.672772788588638
1978	6.616691812095312
1979	6.308321679315639
1980	6.291415243605102
1981	6.383025717825749
1982	6.2082651632938655
1983	6.3336379506066764
1984	6.307895533520716
1985	6.092390691787163
1986	4.327509573171315
1987	6.376007326869815
1988	4.445745081965166
1989	4.442580423354857
1990	4.524203257443256
1991	4.64165525418162
1992	5.523918519442239
1993	5.222708682516592
1994	5.482036492254899
1995	4.926312173129184
1996	4.93845765340386
1997	4.93501113726085
1998	4.345363927085178
1999	4.3569547983896255
2000	4.569573071840982
2001	4.76589954922583
2002	4.775332629758595
2003	4.919123593961145
2004	4.687475344052614
2005	4.464401818496446
2006	4.683056367694223
2007	4.605971385298047
2008	4.682814137094617
2009	4.700845314798215
2010	4.854886454461453
2011	5.036889900085865
2012	4.51193450235743
2013	5.472479329487362
2014	5.367099828614212
2015	4.415354555865443
2016	4.378201617535208
2017	4.543520629450732
2018	4.378030356682278
2019	4.4340521240065245
2020	4.4339851037819065
2021	4.434312639050447