Year	% of GNI
1970	2.2729818682308953
1971	2.0372195251940006
1972	2.243265232629595
1973	2.1850348588253348
1974	2.2914966173115556
1975	1.926489542082252
1976	2.1414657405631683
1977	2.2526439085003536
1978	2.2421307648274147
1979	2.304601929668473
1980	2.3176087933112437
1981	2.271355037923842
1982	2.645107893987905
1983	2.778289749708664
1984	2.4030829805673046
1985	2.603983853401416
1986	2.7223276378420165
1987	2.6742095106075934
1988	2.4916533982923665
1989	2.9520540049449355
1990	3.115436783548428
1991	2.9719692389096872
1992	2.9283989685581187
1993	2.843892116523263
1994	2.847208471965336
1995	2.84501253091069
1996	2.6952002747968318
1997	2.699554248985613
1998	3.351853651486985
1999	3.7566266015939114
2000	3.570217719824846
2001	3.3975752962557566
2002	3.203822240214273
2003	3.0498240286615017
2004	2.8280622703460536
2005	2.805516695180123
2006	2.813030246067324
2007	2.8468881206261623
2008	2.829082073613921
2009	2.8279906004799877
2010	2.815876130820648
2011	2.809718899013442
2012	2.8068279694136895
2013	2.811725210550768
2014	2.821384520309589
2015	2.8218827883830264
2016	2.8368419933826132
2017	2.8279570833057623
2018	2.7856474319472917
2019	2.7788639672029216
2020	2.759322910503124
2021	2.7719922708262357