Year	% of GNI
1991	15.938508734666742
1996	10.83920647676578
1998	9.39152440838901
2014	8.937143240711077
2015	4.476550574572332
2018	7.103656060291705
2019	6.832210465976885
2020	0.22030095844441722
2021	1.401047316477789