Year	% of GNI
1971	9.401322089895483
1972	9.470081772881803
1973	10.66200097179592
1974	9.249467216005698
1975	7.491318191431086
1976	8.15228251114777
1977	8.208772116594073
1978	8.961798266653282
1979	8.845484920853524
1980	7.200151066676419
1981	6.667484157810572
1982	5.125671988734094
1983	4.602686498700038
1984	6.331567949709694
1985	5.62699667982095
1986	4.845749654473208
1987	5.044773747977427
1988	5.945379117640835
1989	5.74899825911432
1990	5.177215864578551
1991	4.253745823913935
1992	3.2590014174515254
1993	2.6387974550620257
1994	3.4697686104497123
1995	4.618019936447116
1996	7.435281770876458
1997	7.834065867714251
1998	7.754928917437574
1999	7.033820631543392
2000	7.080098682275608
2001	5.968514255890302
2002	5.052244054482895
2003	4.80596221419616
2004	5.564524709433343
2005	5.77029134529079
2006	6.377895403868543
2007	5.96843800529685
2008	4.05946729210088
2009	1.2829043470816721
2010	2.876976402184326
2011	3.5863439291058725
2012	4.019307323851866
2013	4.276072126346488
2014	4.946633383967779
2015	5.290089259581407
2016	4.947252774272101
2017	5.641613175606643
2018	5.735422032834649
2019	5.632697850325567
2020	4.173409688939582
2021	4.864558917646971