Year	% of GNI
1970	14.0811251332501
1971	13.8268271282129
1972	13.7459834737007
1973	13.1462650888853
1974	13.3986680539337
1975	13.3142868523172
1976	12.7491138989695
1977	13.4056752557345
1978	13.4079300791148
1979	13.5387778972211
1980	15.400301801883
1981	16.1793445999732
1982	16.1931101577145
1983	16.1707356658447
1984	15.6314017338318
1985	15.469824525831
1986	15.131216895858
1987	14.912284271585
1988	14.4290921361074
1989	14.3801183627621
1990	14.367773656453
1991	14.6055334571266
1992	14.7699479705703
1993	14.9578587789665
1994	14.8111654709695
1995	15.2503378501577
1996	15.6720222883182
1997	15.6963895727652
1998	15.8657659669621
1999	16.1784070365157
2000	16.2040461030726
2001	16.6371743872638
2002	16.713217076482
2003	17.152872162748
2004	17.1032746602804
2005	17.3178758720291
2006	17.6417619377851
2007	17.7024483753176
2008	18.3115439901948
2009	19.123394557338
2010	18.988033537401
2011	19.3619872870151
2012	19.1193002521606
2013	19.040780650517
2014	18.8905879947331
2015	18.7052353162615
2016	18.5752259401081
2017	18.4988756011556
2018	18.5613240936388
2019	18.5516788137954
2020	19.9474164437731
2021	19.3080398123085