Year	% of GNI
1970	12.23976623928346
1971	10.146106682100502
1972	14.73592619062342
1973	13.77572575785088
1974	44.431896983662924
1975	32.41166187114108
1976	22.7264783906752
1977	28.60908209654708
1978	30.85478800455012
1979	58.32652405317768
1980	34.65635152601604
1981	18.956642253810703
1982	9.064048536146803
1983	17.667398471306825
1984	20.00081599769659
1985	23.209692426213465
1986	9.200180556759065
1987	15.292710189532263
1988	11.738812223981016
1989	23.13333111587736
1990	32.22624505839381
1991	21.678658924640928
1992	26.301393600597567
1993	34.70178374722703
1994	29.379337380676287
1995	31.4921370969005
1996	28.11469670085573
1997	29.54608946322106
1998	17.777302996315512
1999	21.76633981850002
2000	40.61567406460664
2001	26.159407422532023
2002	24.547838589506966
2003	20.8335604821815
2004	22.250939416043558
2005	29.637874747253722
2006	29.52616814557488
2007	31.003668923026247
2008	33.4801177689426
2009	22.613176044602746
2010	29.62920919726109
2011	31.96874201137009
2012	31.991262366094077
2013	25.07401011945687
2014	17.935708485377365
2015	9.843758704770659
2016	9.123341944204473
2017	13.121930618847681
2018	14.895882379653946
2019	13.971503493818993
2020	10.112888063217593
2021	14.431993750482635