Year	% of GNI
2011	15.5272841609807
2012	15.4688675109249
2013	16.3755220382716
2014	17.1972959856969
2015	16.9606915650799
2016	17.8520296651939
2017	17.2098244256162
2018	16.8564715905682
2019	16.3814877631703
2020	16.4198920230317
2021	16.513949861469