Year	% of GNI
1970	1.396145250332678
1971	1.7429236462890858
1972	2.243877987887862
1973	3.2722093279263147
1974	9.60195193564898
1975	7.120231652256775
1976	7.908682660031234
1977	8.043761709462235
1978	7.133190661307067
1979	12.425969648999907
1980	11.69771529039442
1981	9.114526159489392
1982	6.011119288591754
1983	5.569780718619027
1984	5.491474442103923
1985	4.810203162289587
1986	2.6477825044545464
1987	3.4643951007452656
1988	2.945475129916309
1989	4.086261333047386
1990	4.946683053443949
1991	3.173862534960905
1992	2.9864814181555333
1993	2.83426700734318
1994	2.8179990624369116
1995	3.0683060497408534
1996	3.4181170056422157
1997	2.8491193170505222
1998	1.8904269228248933
1999	2.4148752618825573
2000	3.7987700666670476
2001	3.1375520594501927
2002	3.2529806076713306
2003	3.698087036932319
2004	4.4301137981211065
2005	5.479805369376943
2006	5.787209173550169
2007	5.377419015056643
2008	6.311607129672901
2009	3.591266350300565
2010	4.090008408024935
2011	5.307102208616251
2012	4.723989698841074
2013	4.183258108924211
2014	3.62115473421422
2015	2.090468640232841
2016	1.8610985697526272
2017	2.135948829703039
2018	2.7895099106742776
2019	2.2713392556160765
2020	1.6640975549807848
2021	2.8851120620220407