Year	% of GNI
1970	2.557020197877283
1971	2.5779585798499296
1972	2.745554315151288
1973	2.6865551625752695
1974	2.528975007414198
1975	2.5275830314048764
1976	2.811822689942651
1977	2.8259377361290348
1978	2.9271147578979315
1979	2.925942219680247
1980	2.850816081709949
1981	2.8295211747109055
1982	2.8533990904338147
1983	2.896581518141957
1984	2.7892073500294208
1985	2.820726887233674
1986	3.089236412832912
1987	3.2115170780413327
1988	3.100591896756041
1989	3.0048290804782654
1990	3.3987810278027513
1991	3.5030433040614133
1992	3.5476245395040094
1993	3.681834879152219
1994	3.7886278462751233
1995	3.918573852425585
1996	3.961527582714638
1997	4.028053811205907
1998	2.9151510799212024
1999	2.873655509165597
2000	2.653027123419004
2001	2.6792139986762775
2002	2.6704681529890553
2003	2.745763910585526
2004	2.722869148789643
2005	2.79898345866966
2006	2.884576400071905
2007	2.90724991233746
2008	2.4427011740860634
2009	2.4991852030432167
2010	2.424740593541154
2011	2.533511408120245
2012	2.549127862589188
2013	2.53333078631474
2014	2.4891754699026416
2015	2.4932772055916863
2016	2.5720164401656698
2017	2.5402360527040595
2018	2.4439524571982743
2019	2.382172882131319
2020	2.396311729170969
2021	2.421768262260201