Year	% of GNI
1990	31.1381686404959
1991	32.6853135096884
1992	34.5740293172665
1993	31.8882476720265
1994	36.0488681941286
1995	39.0222123057696
1996	37.8919310005202
1997	40.6335524365707
1998	37.9042098637325
1999	34.7674550480442
2000	33.5056630397517
2001	25.8358021776394
2002	23.8672529201568
2003	24.638075416887
2004	27.4408659394593
2005	31.3352782647194
2006	36.4281152950636
2007	39.1294663463071
2008	32.2280097869781
2009	31.5876097706525
2010	39.7145745309664
2011	38.6639010139432
2012	37.1521105111041
2013	35.1261005015888
2014	36.2532556671941
2015	32.8360401636595
2016	33.1614919461361
2017	34.8296065430068
2018	31.5344276655524
2019	27.9312036303827
2020	26.1316874037038
2021	31.5524282518988