Year	% of GNI
1990	13.621279613493707
1991	8.038833787806883
1992	8.14077171924516
2000	8.760997364449214
2001	6.864896786056631
2002	6.380432647046148
2003	6.159398549116414
2004	6.716095054167718
2005	8.548668889478645
2006	9.040537944906326
2007	8.038246081664271
2008	8.474302144467964
2009	5.825366536328894
2010	7.310075927101345
2011	8.568874346197646
2012	7.663958747799327
2013	7.265708188771658
2014	6.768249082768477
2015	4.943878442129258
2016	3.5961763432675644
2017	3.8928936741745654
2018	4.948583762042802
2019	4.751234811070196
2020	3.733966628307008
2021	3.4729906092355947