Year	% of GNI
1976	14.68198586149734
1977	15.803288271655052
1978	15.320894701605084
1979	15.765563005541793
1980	15.609967454270775
1981	18.455030461274617
1982	18.34964180957556
1983	18.628549565401826
1984	18.28869327977411
1985	17.915254874503695
1986	17.39584294992519
1987	18.63604276163273
1988	19.312365494282606
1989	20.37110289822741
1990	21.59228869286301
1991	21.646714434820105
1992	22.40063514823802
1993	22.333705885396956
1994	23.50764605473042
1995	23.485631072977853
1996	23.103450927153663
1997	23.45009119416496
1998	23.562141833420313
1999	24.13770316198901
2000	24.32407290878566
2001	24.698198943648116
2002	25.60931242700148
2003	26.967311206549066
2004	29.338867165487372
2005	29.684346716370175
2006	31.09578998352472
2007	31.456486870978626
2008	30.711525850880136
2009	28.805529753551177
2010	30.409074341318096
2011	29.72526552644889
2012	29.905293415020743
2013	27.739638299392645
2014	27.940591802686093
2015	26.398918768538618
2016	26.08955486253664
2017	27.30543356421173
2018	27.300954064314762
2019	27.018722178526392
2020	26.584273853955462
2021	27.295564552805807