Year	% of GNI
1980	69.96209052841118
1981	56.547029212053545
1982	32.178011944334294
1983	27.816307167965324
1984	31.917620601882536
1985	33.240922318905895
1986	27.528400594104458
1987	34.37409061061087
1988	26.767238299761388
1989	34.96766472523666
1990	35.91748496844466
1991	20.419813554897093
1992	21.738018776402274
1993	20.08160606786794
1994	16.86078540931845
1995	16.37709879706735
1996	19.592640275719837
1997	18.614238028320077
1998	12.785902356609851
1999	17.416335984295998
2000	21.087136348539858
2001	18.031568709354282
2002	17.517487611129223
2003	17.691205337784123
2004	19.138390463319848
2005	22.74775988441279
2006	23.02378126483652
2007	21.368212404562076
2008	24.49885754953644
2009	18.839565607601248
2010	21.38243900981512
2011	29.647812743096214
2012	23.19898194170847
2013	24.4220047578715
2014	22.63745185245399
2015	12.737701586962276
2016	9.721504090522645
2017	11.241381187322641
2018	14.760578203887897
2019	13.83493037407494
2020	11.238745683888686