Year	% of GNI
1970	0.9335043822595468
1971	1.1300135427690634
1972	1.3917072140492681
1973	2.0855945675934624
1974	5.162199822743128
1975	4.7264708914196305
1976	5.342503697769814
1977	5.6627141555410505
1978	5.477438293895053
1979	7.868472650292996
1980	8.66392476470909
1981	6.364942405046921
1982	5.6067287583296315
1983	5.3833700275516785
1984	5.1822258093608955
1985	5.1103605914338175
1986	2.77870679910692
1987	3.759529210020473
1988	3.282887868741462
1989	3.704319607164234
1990	4.0393183521394205
1991	2.6827864668205152
1992	2.551114918188345
1993	2.392125817823689
1994	2.072538011669334
1995	2.1146804064186133
1996	2.230764329623591
1997	1.8781966724106267
1998	1.254773690988796
1999	1.8071568944384413
2000	2.8641919902073467
2001	2.3983262111676042
2002	2.3838658360186407
2003	2.5324472919957848
2004	3.369040343056036
2005	4.177054404288481
2006	4.523613509117667
2007	4.442691678626587
2008	5.646356415851307
2009	2.9208888242487374
2010	3.8584371946506764
2011	4.75014100147232
2012	3.518059887778629
2013	2.9195414583316603
2014	2.4568242121288586
2015	1.3215927166886787
2016	1.1735018241764468
2017	1.4383063108498046
2018	1.818209133005787
2019	1.5213021858350215
2020	1.0207840357324403
2021	2.1123686277410383