Year	% of GNI
2010	5.22444523481382
2011	5.56588394629364
2012	5.09359064851474
2013	5.05943809099213
2014	5.05384239226629
2015	5.31663532983445
2016	5.09457277824089
2017	4.98164856659786
2018	4.84619679216921
2019	4.81539005959773
2020	4.96359685204422
2021	3.80412191949828