Year	% of GNI
1975	5.475486902882639
1976	6.550276273964779
1977	7.628463495803105
1978	7.021060714053433
1979	7.082481472277581
1980	6.657477274675231
1981	8.584363418661306
1982	8.52577614525549
1983	8.426483931333642
1984	7.913320209824093
1985	8.37613071409666
1986	7.980116311585915
1987	8.816378870128169
1988	9.606302116345429
1989	11.111783653448768
1990	12.123897164723543
1991	12.493543518948528
1992	13.563897403546681
1993	13.667441542388593
1994	15.744941414248075
1995	16.186371508260724
1996	16.29138792908084
1997	16.70531610153037
1998	15.88076956935486
1999	15.652807558955331
2000	15.76543717786114
2001	16.05912924036052
2002	17.765554734228918
2003	19.7175333428763
2004	21.870441187701296
2005	22.5536472585365
2006	24.074073980900536
2007	24.743583836336946
2008	23.128430920680238
2009	23.630055585156313
2010	25.11083335874224
2011	23.6858458661859
2012	23.652557944941528
2013	22.975995814878935
2014	22.24714254811383
2015	21.604308937138047
2016	20.70545245687614
2017	21.105909694496344
2018	20.60445057066363
2019	20.005318971540675
2020	18.806289144267822
2021	19.5544959646667