Year	% of GNI
1960	9.18962212900427
1961	8.657990909090909
1962	3.8888809923549483
1963	4.617595048303856
1964	6.1317551899270635
1965	9.97423922018261
1966	5.677644082127853
1967	13.518492457554618
1968	15.355779069581175
1969	7.875444096783244
1970	21.895387072584654
1971	35.38317030367372
1972	28.559514837755902
1973	21.741919962180123
1974	19.85607070902454
1975	15.707478785697598
1976	15.694831231870038
1977	17.954366586313125
1978	20.45137297839039
1979	21.229921182687917
1980	14.196198592693834
1981	10.425006657550956
1982	11.815946790823558
1983	10.133446984009293
1984	9.687006376592027
1985	12.682963797754438
1986	13.420250760700975
1987	9.61199021940605
1988	7.241758892668345
1989	6.321516713460628
1990	9.382342088788873
1991	5.868208237756875
1992	4.301993723334106
1993	4.000937076089921
1994	2.5442215994556117
1995	2.531193531575218
1996	3.702280819572448
1997	2.931594033881467
1998	3.887750797762435
1999	2.0878353165941452
2000	3.7906858633487364
2001	2.080267480099851
2002	8.593348426111007
2003	1.3265459092152412
2004	1.1779057448441002
2005	1.7414060088696695
2006	1.2557338564028737
2007	0.6043468964495275
2008	0.8313498844639466
2009	2.910669627112315
2010	5.813062826820031
2011	2.305929583191258
2012	3.1991069685428113
2013	2.1922410022430774
2014	0.9231963063552417
2015	0.5025241568411325
2016	0.3974424095303798
2017	1.0368366667251816