Year	% of GNI
1970	9.104167404930742
1971	8.951937761978346
1972	8.537771556950936
1973	8.409606024168411
1974	7.2604347570172525
1975	7.987373536904073
1976	8.568588783541092
1977	9.85355693205167
1978	11.130025246303784
1980	14.066180979901976
1981	14.059016671959311
1982	14.008569631573412
1983	13.634284909140383
1984	13.874691562947401
1985	14.302625948110947
1986	15.67775279230885
1987	15.306773444143678
1988	15.67754113175505
1989	15.072772732445829
1990	16.95537731218641
1991	7.43307220774815
1992	7.9168034126741516
1993	11.574619418228272
1994	11.581427351581214
1995	12.823138399703753
1996	12.643924950002097
1997	12.356044093480817
1998	11.779786126884279
1999	11.325226716966448
2000	10.233697710429446
2001	10.263953005400147
2002	10.06125132782315
2003	10.097577344556315
2004	10.211594093977888
2005	9.801572684818373
2006	9.797663752746365
2007	9.72434993214265
2008	9.725965394095638
2009	9.990973911149524
2010	9.476652363474743
2011	9.454437580314304
2012	10.867441665838165
2013	10.97430618001372
2014	11.009635642398768
2015	11.043477325852207
2016	10.89688614244271
2017	11.449999931312881
2018	11.77055300882695
2019	11.317782670791011
2020	10.831129911381785
2021	11.254561435870876