Year	% of GNI
1981	4.384799678617973
1982	6.5168892134660465
1986	4.1617054242621645
1987	3.760804376415759
1988	3.675492559599106
1989	4.00552707051834
1990	4.7931784093495216
1991	4.722454743504359
1992	5.047339599867658
1993	4.422603077592495
1994	7.271225596327755
1995	9.292813754249904
1996	8.385818238134293
1997	7.590371128778387
1998	7.552515073507758
1999	4.937409871445212
2000	4.6534472770214546
2001	4.734487587357574
2002	5.224816778405203
2003	7.352378385120864
2004	5.630794517294581
2005	5.224900810554243
2006	4.477613081233988
2007	5.5064042799416715
2008	5.427786355924191
2009	5.095596949731676
2010	4.330236986958539
2011	3.870790720679387
2012	4.282756683903947
2013	4.19514944463119
2014	4.286447226842176
2015	4.682609948717867
2016	4.911326395512967
2017	4.544379559588853
2018	3.053909187341114
2019	2.8289082615875105
2020	3.071000979157764
2021	2.9913213656700033