Year	% of GNI
1977	11.4905953507194
1978	5.61907480715324
1979	5.6641463556461
1980	12.7810512180103
1981	8.65679055082273
1982	15.3771481690657
1983	17.1723514045605
1984	9.24226374825638
1985	12.9502598821941
1986	12.1323223591213
1987	12.9605983745866
1989	15.1621754136178
1990	14.0630151406558
1991	9.84646478522979
1992	14.3987593472573
1993	11.8505245397804
1994	10.4700444286838
1995	22.7079715566715
1996	28.1484629289129
1997	23.903148775992
1998	22.7287612632908
1999	28.2160988091105
2000	26.5950238616906
2001	22.8485507682744
2002	26.2271245668658
2003	25.0121849803473
2004	26.404828231152
2005	23.7408692804208
2006	20.067711994768
2007	21.5438137690833
2008	19.6412422615027
2009	18.4133900615116
2010	16.5138907203646
2011	13.6789882396316
2012	14.6247926855948
2013	13.8976481122783
2014	13.1387804582252
2015	12.4595209921256
2016	14.3137543074992
2017	9.89319306976793
2018	8.40563401329886
2019	14.2361718018631
2020	5.87744220857253
2021	2.17395820209519