Year	% of GNI
1970	5.571478858715057
1971	3.4410774330791267
1972	3.006628841265853
1973	3.9934655925940437
1974	6.076219104332708
1975	6.542871696111684
1976	6.738530973440711
1977	4.504399690572551
1978	3.8423165242342843
1979	5.017748063805818
1980	4.486144851382771
1981	2.922818295589307
1982	3.317331872832918
1983	4.8730951397933
1984	4.310673436795957
1985	5.171525061435133
1986	3.9315177454905337
1987	4.96232619998893
1988	6.963681706537467
1989	7.5367609261588555
1990	6.003073384685908
1991	2.8633855970904927
1992	2.1621475861279125
1993	1.3306911597101878
1994	2.1646255149046816
1995	3.1924489771659763
1996	2.6512928423398856
1997	2.6055289733787745
1998	1.253640463516643
1999	2.0882236100504037
2000	3.1445518191675066
2001	1.8918314366944913
2002	1.6588202082076597
2003	2.7551073659760057
2004	6.187862564237695
2005	6.120534718895036
2006	11.57673602938271
2007	11.10983708931987
2008	8.307728066325787
2009	5.307933994049241
2010	6.454926455383275
2011	6.514048929097788
2012	4.696242500063564
2013	3.819027575371086
2014	3.404301302638721
2015	1.786739809441615
2016	1.429839543588921
2017	2.636883702819093
2018	3.141305438870979
2019	1.0221969609468204
2020	2.6762743171748244
2021	9.415391089099671