Year	% of GNI
1970	7.027308882833676
1971	6.645723462498514
1972	6.661085508445379
1973	6.584443136170548
1974	6.992250308048003
1975	7.507453548251305
1976	7.569611956249919
1977	7.271157102406608
1978	7.380690580395668
1979	7.949276946976943
1980	7.781723628226106
1981	8.043550693109802
1982	8.329528180176363
1983	8.058107981532928
1984	8.324325662151765
1985	8.780073765433286
1986	8.86286953057427
1987	9.140870100058471
1988	9.019818304112352
1989	9.090081101794983
1990	9.108798064987726
1991	9.508249243541297
1992	9.607977524322914
1993	9.28682174836164
1994	9.216508502675161
1995	9.176301368401123
1996	9.039808210646514
1997	9.243877143907062
1998	9.116884821329291
1999	9.192472749654627
2000	9.493642928938398
2001	9.597798456522375
2002	9.572119087578216
2003	9.418430155633853
2004	9.654750305103986
2005	9.649333584355235
2006	9.590600056087801
2007	9.594488115622
2008	9.736559320495518
2009	9.723933094161394
2010	9.554001269029747
2011	9.647524366216905
2012	9.743450647814823
2013	9.69833571087281
2014	9.808798323805137
2015	9.565218903369317
2016	9.51944441042762
2017	9.49796402968066
2018	9.589733921025305
2019	9.039004043090019
2020	9.787723835069405
2021	10.097053080382631