Year	% of GNI
1970	0.9306966893909164
1971	1.1278264857419664
1972	1.3889828559622726
1973	2.081707838930681
1974	5.150330698356897
1975	4.7156927022872885
1976	5.325098426739996
1977	5.651479778072235
1978	5.454374046789829
1979	7.830427685536399
1980	8.61925393418064
1981	6.390862587247854
1982	5.723051548216495
1983	5.4231119180503935
1984	5.215980660812719
1985	5.110971615584543
1986	2.8660408983427406
1987	3.8158372173095985
1988	3.3542879558377847
1989	3.7599789330465625
1990	4.137169807246118
1991	2.8259236630674653
1992	2.675093932467299
1993	2.5119254387492504
1994	2.3417640519109897
1995	2.3480731061313773
1996	2.4080688704693847
1997	2.036645636783754
1998	1.4206144477644809
1999	1.9206172250586742
2000	2.982124442580748
2001	2.513670047764614
2002	2.515906254455902
2003	2.7086845197162535
2004	3.503558862383163
2005	4.300549653745275
2006	4.626049616061696
2007	4.550899656959069
2008	5.739844576057271
2009	3.0210790739128965
2010	3.9306324501869354
2011	4.8844780391150024
2012	3.6023807911183314
2013	3.0026480428109896
2014	2.5451173427981653
2015	1.414351045166229
2016	1.2705729950851012
2017	1.5211258115404804
2018	1.8761918535326532
2019	1.5732065226316303
2020	1.0928341481663981
2021	2.2122198468439516