Year	% of GNI
1970	15.64198567572822
1971	15.101062275537512
1972	15.72736030523009
1973	17.166737049031482
1974	13.384771306188275
1975	11.521915968487187
1976	12.500226452629802
1977	12.740354337202557
1978	14.00967507021503
1979	11.71149054902808
1980	9.311202927836977
1981	11.789111898228063
1982	10.395043655554325
1983	8.843472392202667
1984	11.647959700873354
1985	10.263106382226974
1986	7.8146162156399
1987	10.186314546028385
1988	9.493187663651787
1989	8.714365830503674
1990	6.514512059869664
1991	6.433408819310795
1992	6.502251503820614
1993	5.775585031186086
1994	7.203708378763867
1995	7.479887012114261
1996	8.2588799443959
1997	9.580886170575967
1998	9.654783019927548
1999	9.206030544953459
2000	8.822642067077686
2001	7.688815087162162
2002	6.598127025674216
2003	5.747095514303211
2004	6.037025163167978
2005	5.819254741168521
2006	7.199146466845044
2007	5.37438622327787
2008	2.5478049246454146
2009	1.156872167103597
2010	3.225781200062146
2011	4.425359200156452
2012	6.177455799831807
2013	7.444380642735184
2014	8.265089153879948
2015	7.433505358041592
2016	6.190888299809976
2017	6.934434767394573
2018	6.783390062118029
2019	6.831868041295934
2020	5.63262051092606
2021	4.630766897292129