Year	% of GNI
1990	11.7277739526074
1991	10.7186453028649
1992	5.97572614701136
1993	9.38039849977708
1994	21.3785692893618
1995	24.2525332388713
1996	23.0724003761402
1997	19.3961745492931
1998	13.9854669417847
1999	19.9661987300312
2000	29.1378947139643
2001	23.1326876044148
2002	21.7712621923363
2003	22.6408530358911
2004	23.721317176093
2005	28.4270012556552
2006	26.2377851891146
2007	22.5517228445385
2008	22.7316228226591
2009	13.2476885536032
2010	14.9256723903147
2011	14.9883815811191
2012	9.09710842037262
2013	6.09806128564715
2014	4.80996195243974
2015	0.336626365904688
2016	0.0412424916439234
2017	0.194366502137242
2018	0.716948954598172