Year	% of GNI
1971	40.7303591540585
1972	44.1795130619268
1973	43.5855450427485
1974	74.1461407335584
1975	58.2448152704627
1976	58.8308637494925
1977	45.9893509974424
1978	31.111635999381
1979	34.454900341905
1980	47.4295028167702
1981	41.9543965661029
1982	25.0931063087871
1983	13.1998628549912
1984	7.7049603681408
1985	2.38195490263346
1986	-0.159383079780252
1987	-0.811657395114223
1988	3.34258811349773
1989	0.698945722459887
1990	3.38015746689555
1991	-3.14067538139039
1992	7.5455567254258
1993	5.01112801122604
1994	3.83953295365981
1995	8.04423326626686
1996	10.7041372591272
1997	11.8015379759362
1998	4.45547514846063
1999	14.6631620073733
2000	21.0167390545578
2001	17.5711550035461
2002	19.8594709928884
2003	25.2902438656685
2004	31.6834724566726
2005	39.6278490499446
2006	39.5764180634847
2007	39.5664812145686
2008	43.6296523904104
2009	26.5444819361404
2010	34.3519688718141
2011	42.5247696811297
2012	40.7216500589302
2013	35.0948707803281
2014	28.9242525010328
2015	12.0541686808399
2016	14.8485351802174
2017	18.8170553235345
2018	25.4920664838795
2019	23.5629575229937
2020	12.0665603558246