Year	% of GNI
1970	0.45624856632606825
1971	0.44971624206280125
1972	0.546197254507058
1973	0.7747992142324901
1974	0.5972190773546963
1975	0.712008223503588
1976	0.6400856778610649
1977	0.9400563287284351
1978	0.8955146892210898
1979	0.7942240598578961
1980	0.7525724087972515
1981	0.6098826729381724
1982	0.9480532571927699
1983	0.690117047995733
1984	0.49989021243937154
1985	0.4007444665638738
1986	0.5834950658232524
1987	0.6726234789543605
1988	0.6516190358384909
1989	0.5599032933471749
1990	0.5301819449546462
1991	0.5925844912603673
1992	0.5195330451271016
1993	0.43228793012649486
1994	0.4471155384413275
1995	0.5002212522232993
1996	0.4383564314965298
1997	0.3682827793972347
1998	0.3572843687851022
1999	0.27869258622359916
2000	0.25322189477469237
2001	0.2377146231273504
2002	0.26355843839928955
2003	0.34812045042577255
2004	0.24077988442157633
2005	0.22216458390172408
2006	0.2114176764628435
2007	0.24039000672005947
2008	0.23015189105683398
2009	0.21853602886469106
2010	0.1920169763200961
2011	0.17134784733766026
2012	0.17059604695634592
2013	0.16763750635531485
2014	0.18415683446405867
2015	0.19094093399844408
2016	0.19926808865949872
2017	0.18299083696000076
2018	0.13118138408291277
2019	0.12470245937694455
2020	0.13995013197155076
2021	0.12701739247003843