Year	% of GNI
1977	10.033653207603743
1978	9.253003424659825
1979	9.414955949159042
1980	14.217964270091196
1981	11.392490968805523
1982	6.9561523385024095
1983	6.475373186115235
1984	5.84574834128747
1985	6.139706450798373
1986	5.0801850773451225
1987	3.319717331011944
1988	3.762125641312947
1989	4.361594528185369
1990	0.8215443211246463
1991	0.1121795989539045
1992	1.7344595231769926
1993	3.9844909130138575
1994	3.1365873112555978
1995	4.060444389745694
1996	3.5870541034245917
1997	3.350914095910287
1998	3.2610325309374417
1999	2.843611574876375
2000	4.972342929048692
2001	4.54531889318841
2002	7.546912897378325
2003	7.8556976216769385
2004	8.372239835261611
2005	9.460388589281083
2006	10.83028159356479
2007	10.862261299896929
2008	10.60463741307749
2009	7.2884740880972565
2010	8.26571203771512
2011	8.199894014647423
2012	6.382386558609561
2013	6.614030444294652
2014	7.7045670232286
2015	6.112553155484674
2016	6.672268184952108
2017	7.870930602647185
2018	7.610755852428413
2019	8.405576253492152
2020	8.306930923006513
2021	8.790990293801823