Year	% of GNI
1970	28.1591484322842
1971	38.42519184329364
1972	44.893916875640116
1973	54.03375385043405
1974	60.186104933167165
1975	49.48407035297759
1976	48.486542433674394
1977	39.892338498847984
1978	39.29154977697317
1979	65.77698727779014
1980	43.83878208312784
1981	29.420529207572756
1982	19.913205225787664
1983	19.529414561878244
1984	28.0141187939752
1985	16.672805182022277
1986	10.260696284451454
1987	12.286161101433454
1988	12.680798716276557
1989	20.01012923414855
1990	33.983496230236426
1991	18.722323476664698
1992	19.20729367475748
1993	18.721878562250065
1994	18.85205746426045
1995	17.69475542813595
1996	26.00259329132981
1997	14.896692382178502
1998	12.541406970831757
1999	15.655071196636644
2000	18.104594503373733
2001	15.285890812480668
2002	9.336115090131669
2003	10.702887524306545
2004	12.164139586718305
2005	14.307454311509321
2006	12.201116629640474
2007	11.855490111372973
2008	14.010022142010776
2009	10.923748709395019
2010	14.071589328651635
2011	16.387893915228616
2012	15.340377614077708
2013	13.64192294987717
2014	11.235489827386845
2015	7.048491308956106
2016	5.896703409005948
2017	6.903878564565134
2018	8.68055907433724
2019	7.810098547383637
2020	6.314517102554324
2021	8.752723012808065