Year	% of GNI
1970	0.42708129862184796
1971	0.6589290134295639
1972	0.6218542268592654
1973	0.8589878389798633
1974	3.600029240314367
1975	3.139071077525576
1976	2.678317653945303
1977	1.666796968680868
1978	1.4390079314501558
1979	2.8097695192297962
1980	3.066689517732835
1981	2.600617245252363
1982	1.6208163859910378
1983	2.3276417643758927
1984	2.3581867309830753
1985	2.59229024707947
1986	2.025443972719826
1987	3.831076039569746
1988	2.8311642924713682
1989	4.457103702359893
1990	5.340351278220135
1991	2.929887573512733
1992	2.317779955172778
1993	1.9280799411444571
1994	1.619165974733689
1995	2.2786296979603757
1996	2.903190264055202
1997	2.442410407664768
1998	1.6125038532487241
1999	3.652441574283019
2000	4.971142748301092
2001	3.242725278570578
2002	3.3979722784835547
2003	3.928076925868086
2004	4.711362440169201
2005	5.226452711502198
2006	6.10457398999852
2007	5.28926366140542
2008	6.708780125801919
2009	3.966395133909403
2010	5.344495619366382
2011	8.187225394400228
2012	7.020855175237469
2013	6.296807053180584
2014	5.499015410717313
2015	2.902414225168312
2016	2.269849118077478
2017	2.862159641206981
2018	4.058404334093086
2019	3.5350826370334607
2020	1.92785529565366
2021	4.214525286949862