Year	% of GNI
1970	17.4647312977716
1971	13.8698896174657
1972	17.0948119142882
1973	19.2098228175073
1974	19.5701705547757
1975	17.1285340250818
1976	19.1682106719514
1977	21.372705110089
1978	20.2570510859357
1979	19.4477721753899
1980	19.5931141103039
1981	16.6125146751501
1982	14.5194200305554
1983	14.8652043673767
1984	15.6964079240589
1985	17.6936163528385
1986	23.2522452752722
1987	22.5457236154122
1988	23.4720914685086
1989	21.8886882417217
1990	21.9379069762983
1991	23.9882607780588
1992	19.8510979144382
1993	18.4462183241111
1994	19.4563762866243
1995	18.8319399414563
1996	15.4370014302749
1997	13.7991104708547
1998	13.099425010089
1999	13.7574884877529
2000	13.8743399833875
2001	13.1591198067319
2002	14.309346096927
2003	15.9410861201641
2004	17.4338455267573
2005	18.906787899277
2006	19.5330516104163
2007	19.2318850476035
2008	20.2712303523894
2009	19.2423313288231
2010	19.1202176794984
2011	20.2023479539265
2012	19.1009921536753
2013	18.8412457060465
2014	18.6875130704607
2015	17.5992977713618
2016	17.672495888923
2017	17.3999048630891
2018	16.7810175127653
2019	16.5391988476518
2020	14.7982262907133
2021	13.7722882025239