Year	% of GNI
1977	8.394868874134373
1978	9.368888693624761
1979	7.672581735145576
1980	9.754956923606496
1981	8.770625389544424
1982	5.426990725895464
1983	5.615969588055301
1984	6.249137634253488
1986	4.772214140282676
1987	3.7018788447531366
1988	4.05970600520556
1989	3.9009519719445023
1990	-0.19437882405155826
1991	0.2694981937265224
1992	1.7444774759802284
1993	2.796741686276768
1994	2.164456258362378
1995	2.748278490760247
1996	1.3904446574887521
1997	2.30141029931928
1998	1.1128677799985973
1999	1.3245064019926196
2000	1.2103996790035634
2001	0.6235606449646687
2002	2.4762370987320184
2003	3.9587552000913773
2004	4.284563119539609
2005	2.335696772028558
2006	2.5480849381557222
2007	1.20262133643767
2008	3.896949523685889
2009	4.4128762928851994
2010	3.6805831031611786
2011	2.431399756868556
2012	5.420522015358777
2013	2.4239331371670323
2014	6.128050879929409
2015	4.825277671947941
2016	4.061918738406428
2017	4.786368771892652
2018	4.870470829971715
2019	6.752352149669767
2020	9.120968993930044
2021	8.521851827928066