Year	% of GNI
1970	0.5879617716208159
1971	0.5025051097600617
1972	0.5293284179310674
1973	0.7849372750354209
1974	0.7241273276515143
1975	1.065863774400244
1976	0.8300202363233118
1977	1.675840132206561
1978	1.4993432686592625
1979	0.9015659074136531
1980	0.9080925112645286
1981	0.743442960329235
1982	1.0675365287237195
1983	0.7239461536311035
1984	0.6308864736809446
1985	0.4609485264471623
1986	0.7516011835461595
1987	0.6831428902495875
1988	0.671532461090864
1989	0.6728235167313231
1990	0.8143677598575527
1991	0.853732628048255
1992	0.8406234145321679
1993	0.7947960647060027
1994	0.7575348149939811
1995	0.9057806443532022
1996	0.8007942321659876
1997	0.6779883623880032
1998	0.680005344026485
1999	0.5246746468944883
2000	0.4862766222978495
2001	0.4700756246552564
2002	0.5298036733199362
2003	0.6485727783204738
2004	0.48627886093745937
2005	0.4367373959434102
2006	0.4457394841266864
2007	0.5047185043364755
2008	0.4854125340778857
2009	0.4347372648509593
2010	0.4431308097429899
2011	0.41792434875338863
2012	0.3892501855764188
2013	0.3642927971047849
2014	0.38902348418164995
2015	0.39416277422257107
2016	0.40996384238577865
2017	0.37091608029285394
2018	0.2509034731018546
2019	0.2410370436584856
2020	0.27452355654225646
2021	0.25090319378085346