Year	% of GNI
1975	0
1976	0
1977	0
1978	0
1979	0
1980	17.7636724389073
1981	16.387823094139538
1982	9.937696486665777
1983	9.194073048466116
1984	10.543169391340474
1985	9.536555245025184
1986	5.511060407619828
1987	6.116523140877985
1988	4.638142526378351
1989	8.401829886951582
1990	8.995345221280688
1991	5.236820666581725
1992	5.427457771867709
1993	5.509489886358889
1994	4.76403721886088
1995	4.3182798242015386
1996	5.164691407743619
1997	5.0538662486544865
1998	3.0015283398782318
1999	4.287220330477997
2000	6.483157804882482
2001	5.125868749702754
2002	4.67994181872653
2003	4.560412576070483
2004	5.0383418698420765
2005	6.26279758504287
2006	7.004434653735401
2007	6.146984058634459
2008	6.915928344819666
2009	4.756755519065506
2010	5.984504775428771
2011	7.850093801415453
2012	7.0317999010939465
2013	6.655098147954338
2014	6.154439709660314
2015	4.4200570320236485
2016	3.1491283915574466
2017	3.433250693032108
2018	4.460335057148312
2019	4.26127021251457
2020	3.2987846161104164
2021	2.966909794531823