Year	% of GNI
1971	0.3532071631467898
1972	0.28972570945362563
1973	0.48680967016952953
1974	2.452477737351335
1975	2.249796598629641
1976	2.4185858769119277
1977	2.5727136260133396
1978	2.356280031653886
1979	5.894447676941614
1980	1.804452491636417
1981	1.2838533124600424
1982	0.6137648852954941
1983	1.3445159994710698
1984	1.7204763409228825
1985	2.5067194813312277
1986	0.9585746185299939
1987	1.6612265375137683
1988	1.2833308489821365
1989	2.4033478301820987
1990	3.152546041905735
1991	1.6524089117827723
1992	2.1303492339772596
1993	2.4723066714207818
1994	2.116504738609987
1995	2.5213142679776963
1996	2.6070644607614204
1997	2.4878091741285306
1998	1.1001290459824262
1999	1.7486574057924258
2000	3.195929011969869
2001	3.130512877866087
2002	2.811451481616532
2003	2.6207880488199917
2004	2.8424472703734147
2005	3.5405517740036023
2006	4.029010486693841
2007	3.404495111405695
2008	6.1260558837125565
2009	3.510409462094059
2010	4.897631666466519
2011	6.20675247019358
2012	5.288862117959307
2013	4.086850289316199
2014	3.1090564673811865
2015	1.5761092598562
2016	1.1891640806562958
2017	1.969603081560387
2018	2.858582535000597
2019	2.606803202924033
2020	1.4515366642945764
2021	2.7292833928206455