Year	% of GNI
1971	0.3244374124115043
1972	0.349780724965795
1973	0.37466663351772594
1974	1.423334730238069
1975	1.7901293324316918
1976	1.899268524964942
1977	1.9627786001269365
1978	1.667506643432489
1979	2.6114556910180555
1980	2.0689994854375
1981	2.048414863331596
1982	1.9455289606063837
1983	1.8119966769190294
1984	2.0509380401263635
1985	2.797434322713311
1986	1.3153925178584542
1987	1.2556474000438875
1988	1.1453717608087999
1989	1.743227413504714
1990	1.9677946956703076
1991	1.279924317824672
1992	1.514595320199235
1993	2.0444713059459096
1994	1.7985832731381026
1995	2.037039719426841
1996	2.150571997258985
1997	2.0952060761509452
1998	1.198398026682276
1999	1.6322738042228118
2000	3.4751805178138606
2001	2.83916345540733
2002	2.756905371867097
2003	2.164359508677471
2004	3.484725218780527
2005	5.336642395212371
2006	5.996401625055009
2007	6.488824130756009
2008	8.898003222798126
2009	4.15112607143598
2010	5.752675001238495
2011	7.336392414291975
2012	6.129620362306666
2013	4.878967469712995
2014	3.6841387492493576
2015	1.5900883731260405
2016	1.4514560280589617
2017	2.3845706024747426
2018	3.1523550519928594
2019	2.671607069330541
2020	1.4293154075960086
2021	2.3933993420571325