Year	% of GNI
1970	3.7771714227190336
1971	3.840604312203392
1972	3.8807672914542195
1973	3.9164428316748126
1974	3.8826289435565644
1975	3.9408227153668665
1976	3.9332092317742795
1977	3.8764903193838007
1978	3.9935113896457186
1979	4.0784894156983995
1980	4.161855791928153
1981	4.181545448939004
1982	4.097356647058132
1983	4.1052090678030995
1984	3.9439934079441548
1985	3.793111782873187
1986	4.165829033547887
1987	4.219522566152462
1988	4.252446886969224
1989	4.103529502669863
1990	4.176002576426641
1991	4.524699966543127
1992	5.321684142492108
1993	5.123996076843857
1994	5.234528289856048
1995	5.850743360099037
1996	5.4004050340908005
1997	5.990595708721662
1998	4.5239089083202195
1999	4.407998005754742
2000	4.002475998272685
2001	3.9985664725389065
2002	3.9918863128978335
2003	4.112590013806549
2004	4.252708491328629
2005	4.196163820666645
2006	4.08947695601438
2007	3.972144518453992
2008	3.088675593173236
2009	3.3522212501222874
2010	3.473902261844514
2011	3.666841856755352
2012	3.648898943296551
2013	3.392318282754744
2014	3.2710788949015295
2015	3.173770676954119
2016	3.1978081689284585
2017	3.394159310771469
2018	3.3620940822791834
2019	3.3394758606984354
2020	3.3704355039270593
2021	3.5885989181316633