Year	% of GNI
1976	16.521785153919
1977	14.9837592957271
1978	15.3341912901635
1979	15.2746550419281
1980	15.0684314310087
1981	11.2451069686249
1982	9.31999896876644
1983	13.6599573232022
1984	13.0343876093959
1985	10.9183268426326
1986	4.09040567597261
1987	5.12639467494669
1988	7.20796850523643
1989	9.11452943693355
1990	10.0597664041771
1991	9.31495339825429
1992	8.78838573720479
1993	8.08920069054689
1994	10.5205543291846
1995	11.52328236385
1996	12.4187513817631
1997	12.9020437810914
1998	13.071648734362
1999	10.9159671187422
2000	11.3190374089697
2001	11.5559370679501
2002	12.6239440525093
2003	15.0477204810069
2004	17.828431371046
2005	20.6982800939157
2006	27.5374538756841
2007	29.7456870145333
2008	29.9465759357784
2009	23.8257218528247
2010	26.0265880438812
2011	27.44649800795
2012	27.3386212840697
2013	25.4761904081546
2014	21.9173274396152
2015	14.7196648180842
2016	15.7073917987234
2017	16.5465375851931
2018	16.5280497809507
2019	14.49112527948
2020	12.6260080604672
2021	14.2330908387963