Year	% of GNI
1976	6.531232360603401
1977	7.206132520314769
1978	7.608436440823329
1979	5.664073336283833
1980	6.03066077475118
1981	7.463537256722906
1982	8.295284863173304
1983	9.074647732069245
1984	10.698368674226973
1985	9.205888915953743
1986	11.312946680744254
1987	9.887126901825587
1988	8.918236055217601
1989	7.2388748552572455
1990	8.580795127981444
1991	9.55315682414992
1992	9.061108157906734
1993	9.308106262463657
1994	11.44555667604924
1995	10.328522121318818
1996	7.613046971079424
1997	7.269328939482413
1998	7.841875376086666
1999	8.14048927981988
2000	9.564150566473634
2001	9.760448904877494
2002	9.950397470949673
2003	10.797314417361541
2004	11.807298744619356
2005	11.061613671105524
2006	10.732636819441073
2007	10.925852939259524
2008	17.87859841452348
2009	13.39389422660061
2010	13.357957455209714
2011	14.186122790705296
2012	17.637419989228853
2013	10.239433662754223
2014	11.939969021934841
2015	8.232268679884461
2016	7.556393485459166
2017	8.421816721194682
2018	8.570150563652364
2019	10.275920784544676
2020	13.206603756323853
2021	15.3722664501732