Year	% of GNI
1981	5.903411417836043
1982	7.3482136250517796
1986	4.827394698850083
1987	4.982631632100896
1988	4.902490998242018
1989	6.06174504884261
1990	6.973097372497692
1991	5.7941561247039814
1992	6.250977310005678
1993	5.619829675837885
1994	8.50808726839301
1995	10.38985513815516
1996	9.654339620090658
1997	8.818081638211755
1998	8.210733893672103
1999	5.864495435174602
2000	6.366735052901225
2001	6.015469640654184
2002	6.597427684598668
2003	8.442391879703118
2004	7.577333105803753
2005	8.185222463659764
2006	8.454952343749238
2007	8.951172578725556
2008	9.060422481206867
2009	7.23301323780015
2010	7.558257285198371
2011	9.030471959294335
2012	8.135115437904917
2013	7.30461087995472
2014	6.689433564139773
2015	5.916368809259008
2016	6.0893724575780785
2017	6.093743388846672
2018	5.38066617499179
2019	4.644347416952071
2020	4.818554287065667
2021	8.169489178402532
