Year	% of GNI
1977	8.394868874134378
1978	9.368888693624763
1979	7.67258173514557
1980	9.754956923606501
1981	8.770625389544424
1982	5.426990725895464
1983	5.615969588055313
1984	6.249137634253481
1986	4.7722141402826725
1987	3.7018788447531303
1988	4.059706005205548
1989	3.9009519719445107
1990	-0.19437882405155915
1991	0.26949819372652706
1992	1.7444774759802262
1993	2.796741686276775
1994	2.1644562583623843
1995	2.7482784907602453
1996	1.390444657488754
1997	2.301410299319283
1998	1.1128677799985969
1999	1.3245064019926174
2000	1.210399679003563
2001	0.6235606449646562
2002	2.4762370987320215
2003	3.9587552000913697
2004	4.284563119539616
2005	2.3356967720285553
2006	2.548084938155723
2007	1.2026213364376832
2008	3.8969495236858833
2009	4.412876292885203
2010	3.6805831031611698
2011	2.4313997568685486
2012	5.420522015358778
2013	2.423933137167023
2014	6.128050879929406
2015	4.825277671947945
2016	4.061918738406435
2017	4.786368771892651
2018	4.8704708299717145
2019	6.75235214966976
2020	9.120968993930045
2021	8.52185182792806