Year	% of GNI
1971	3.81265470792223
1972	3.70302494994593
1973	4.84706389582213
1974	5.13480524603942
1975	4.665327745427994
1976	4.85636596987135
1977	7.0164395900514736
1978	5.363309346265153
1979	8.289095624172628
1980	11.981804053317688
1981	9.61311166391474
1982	6.765333710880494
1983	8.333426725793952
1984	9.47141187111774
1985	11.099171323727457
1986	4.16215423317067
1987	5.936021950332087
1988	5.338378996093714
1989	9.593251077807812
1990	11.488681673883889
1991	7.734138173413541
1992	7.65824605731018
1993	5.096638385622789
1994	8.43030047566876
1995	8.846264539089663
1996	8.988045688178055
1997	8.726125062237692
1998	5.452704247930824
1999	4.867857626475495
2000	7.632536590178775
2001	5.2212525057730375
2002	4.813055121730143
2003	4.660957546260952
2004	4.127189517497721
2005	6.4605973291478875
2006	7.400527225199282
2007	7.896046111570197
2008	9.461391269700353
2009	5.4716549018608625
2010	6.366005904771628
2011	7.432901724660672
2012	7.693420404779313
2013	6.872053480906613
2014	6.5497012999893
2015	5.440500560083024
2016	5.233354209650055
2017	5.851113849187142
2018	5.612741203858111
2019	5.073707621779549
2020	4.05270603992123
2021	4.9676316564512