Year	% of GNI
1977	17.605064203347656
1978	10.554843457412101
1979	5.063336683871706
1980	10.341289700070613
1981	12.794601885030625
1982	11.13689246982912
1983	9.6829854585616
1984	7.210421763654306
1985	5.166298575842926
1986	3.862182399656862
1987	5.0281274983057145
1988	3.747812689119717
1989	5.086549337221188
1992	10.019963862253919
1993	8.12557722081197
1994	7.13130582130068
1995	7.802988138251298
1996	9.180936993387078
1997	9.154018435976798
1998	7.936318283367882
1999	10.956306840110134
2000	11.951320877243248
2005	21.23091689788001
2006	23.218858991782685
2007	23.199224566402755
2008	24.209403567302743
2009	14.728243188194531
2010	19.80454051165932
2011	23.075190715996737
2012	22.135854320193157
2013	19.949860850887173
2014	17.035345099073346
2015	9.766648671888017
2016	10.358513457099667
2017	12.908618721065292
2018	15.450131293592705
2019	14.35392732090383
2020	8.399433726533385