Year	% of GNI
1970	2.7851557453701865
1971	2.6535574459920075
1972	2.7986318171108913
1973	2.7983793733129034
1974	2.8430495532819164
1975	3.1117017799908706
1976	3.2970787555067913
1977	3.330043550939099
1978	3.3839212808972094
1979	3.361763646927148
1980	3.255909362473744
1981	3.342548930100494
1982	3.450230081149367
1983	3.3226529030720027
1984	4.117553074744842
1985	3.7511993939490718
1986	3.815852544722643
1987	3.8423243980445916
1988	3.7357653208082144
1989	3.6378878242361226
1990	3.712722486899922
1991	3.7119219771002303
1992	3.3407283251263697
1993	3.261939256182461
1994	3.3912618964151457
1995	3.266457835969448
1996	3.122191763735909
1997	3.105405402048781
1998	2.873314234519451
1999	2.8730649190053597
2000	2.9259224622066364
2001	2.907291303665139
2002	2.918830604894327
2003	2.9778193537767774
2004	2.99438396101097
2005	2.923011358337326
2006	2.867835982506975
2007	2.814797085513861
2008	2.7635700723607926
2009	2.7876765862161195
2010	2.83370172537239
2011	2.8322589253951267
2012	2.8424922475198375
2013	2.812085295096833
2014	2.7116351923171154
2015	2.6552027694024685
2016	2.581212201299238
2017	2.537036981962332
2018	2.5153144172695407
2019	2.5030594217778557
2020	2.4862335168383694
2021	2.456108038316172