Year	% of GNI
1970	9.40671108474144
1971	10.4659196344915
1972	10.4323853289932
1973	15.060878666687
1974	8.94204988665321
1975	7.43279932112207
1976	6.66907352808405
1977	6.61703113635978
1978	6.35574254270918
1979	6.49039968622818
1980	6.63482319053407
1981	6.39208130164323
1982	6.87048898386233
1983	7.00664609087062
1984	7.07152134018315
1985	6.9458424902226
1986	9.83407436448879
1987	9.60334139144162
1988	12.2509697247768
1989	10.2986558114452
1990	9.30639869116837
1991	11.2771157654311
1992	11.0240717976208
1993	11.4926558277389
1994	11.6521298953331
1995	11.0384886871966
1996	10.3738876495886
1997	10.6915433043047
1998	13.1874269525549
1999	12.3716083003431
2000	9.66150838043213
2001	10.1214717204845
2002	7.59133549962408
2003	10.3496100117928
2004	11.574158419389
2005	10.1429380509611
2006	10.5130421588526
2007	12.2378703359382
2008	9.5021722824547
2009	16.0079791464074
2010	14.8419227960714
2011	14.3772105626882
2012	13.5015333230135
2013	13.5763901102916
2014	15.1282193495799
2015	16.3307606532893
2016	16.4042324794384
2017	14.7713821468409
2018	7.38343278647766
2019	7.92092759795583
2020	7.60825711577721
2021	7.27150766728134