Year	% of GNI
1970	3.0434403519022566
1971	3.0636619517144124
1972	3.426100693181441
1973	3.2349219366137
1974	3.130903217873886
1975	3.2488511285570554
1976	3.2158938484088235
1977	3.1196233236904023
1978	3.03043383587929
1979	3.1245761833986574
1980	3.049167414792471
1981	3.566763492973169
1982	3.6866317202352255
1983	2.951810711835849
1984	2.9873236605038618
1985	2.813843782634479
1986	2.716244315143735
1987	2.7793012144078073
1988	2.5347920609264407
1989	3.4714303636256694
1990	3.1162091536584677
1991	3.17027645522754
1992	3.496417559338011
1993	3.406468194061482
1994	3.828605417600371
1995	3.735289822018182
1996	3.989616276922365
1997	4.047446117734907
1998	3.948931079657283
1999	3.7409542781955114
2000	3.9505269239974043
2001	4.066423889575472
2002	4.050527835731239
2003	4.229106907396006
2004	4.032927449124555
2005	4.223267133960742
2006	4.297201947052281
2007	4.3358460321112275
2008	4.636769893298147
2009	5.024851820060591
2010	4.9948921809043165
2011	5.010448403147814
2012	5.055110942222627
2013	5.004112102044363
2014	5.179570548313683
2015	5.207554925284639
2016	5.165745258596246
2017	5.1392041105855695
2018	4.951553829168477
2019	4.911764443272846
2020	4.9353392094229
2021	4.900691040794895