Year	% of GNI
1970	0.4449793437369189
1971	0.5486203800526364
1972	0.722735413272859
1973	1.0751729603196913
1974	4.244607121351768
1975	3.9158263598898264
1976	4.5674933194773155
1977	4.605815228949383
1978	4.522956552430964
1979	6.808591831267284
1980	7.349124513053843
1981	5.484976956364048
1982	4.518964083694457
1983	4.448694536363976
1984	4.609745645303083
1985	4.565420573368275
1986	2.126181484339041
1987	2.9281525157843182
1988	2.2389796071383485
1989	2.779756685348659
1990	3.253798284153883
1991	1.8985689214338655
1992	1.8132182124998817
1993	1.8612023251203518
1994	1.5303721838252515
1995	1.5947683858364494
1996	1.8098085763783798
1997	1.5260818551728503
1998	0.8865252410881711
1999	1.4782352503232437
2000	2.553667363466817
2001	2.1172213944732317
2002	2.0632056732303625
2003	2.170117186525801
2004	3.010510740184912
2005	3.670740410489934
2006	3.7655738964012766
2007	3.341488581316137
2008	4.583161494826205
2009	2.3024043112046217
2010	2.8160682629269242
2011	3.553539963438887
2012	2.9321188198374504
2013	2.4215779202731937
2014	2.0701608845256847
2015	1.0383056292583241
2016	0.8590102272902679
2017	1.1152358102242397
2018	1.5099394681672211
2019	1.2256244871573025
2020	0.7020018791762386
2021	1.331855191857412