Year	% of GNI
1970	4.17001100695752
1971	4.28824161476561
1972	4.31807455350047
1973	4.37281316350398
1974	4.27321910249443
1975	4.54672106678399
1976	5.87542365875837
1977	5.21534205169572
1978	5.8937048663336
1979	5.76286024278216
1980	5.74533071484565
1981	4.9445362965475
1982	6.84736055083214
1983	7.57025868493032
1984	7.29067324544005
1985	6.43611940230914
1986	7.01878077037902
1987	7.59532342829571
1988	7.69471923861343
1989	8.95450528925937
1990	9.30074308642927
1991	9.8622161666202
1992	11.244294357769
1993	12.4784451918225
1994	15.4599647018311
1995	16.2799759120546
1996	17.5952773879628
1997	17.0815273182122
1998	16.9927977249334
1999	16.4062953870328
2000	15.4652319352942
2001	14.9308898369278
2002	14.1438196897015
2003	13.8065427533821
2004	13.4808786586785
2005	13.0612415600399
2006	12.9554974402478
2007	12.6226793500702
2008	12.9230456630638
2009	13.4847643798996
2010	13.6350929720797
2011	13.0917275607684
2012	11.8862283620422
2013	10.623878102353
2014	10.2701172376164
2015	9.56631636296431
2016	9.47859168122924
2017	10.0490781776885
2018	10.1091901141351
2019	10.3785329846417
2020	10.6790295878264
2021	10.5802137698338