Year	% of GNI
1975	7.85239493770152
1976	14.891507816733
1977	10.9829569210334
1978	12.3959241964219
1979	12.7377501321637
1980	14.5120432502905
1981	8.23652488539522
1982	2.05085323232486
1983	6.44173251645801
1984	7.84356111624858
1985	10.4756287682115
1986	13.5215745868534
1987	19.3883257854697
1988	24.7012526199147
1989	25.5778957383066
1990	24.993477481589
1991	23.9055379651252
1992	22.7683047103713
1993	22.0086153126384
1994	22.5281117323322
1995	25.1914988580256
1996	26.1523962775318
1997	25.8643917520324
1998	23.93067122817
1999	23.1402773775592
2000	23.3179471423145
2001	23.7337527422961
2002	24.0462258899263
2003	24.8079026290911
2004	26.3821895357199
2005	27.2705976415974
2006	31.0539985650152
2007	30.6356668974261
2008	26.3839227699044
2009	26.3313207934354
2010	28.2509709544453
2011	24.0723268535468
2012	24.8280493934352
2013	23.722920031041
2014	22.6864410952458
2015	23.3058209357631
2016	21.6913344929065
2017	20.6443062053205
2018	20.4425480725529
2019	20.5700739112286
2020	21.2561740970064
2021	19.8824855375092