Year	% of GNI
1973	2.7424008209542747
1974	4.1154417660236255
1975	3.5509523390020266
1979	5.5332783132692125
1980	7.387155852802289
1981	6.145553163667784
1982	6.38097633571567
1983	5.544900830433986
1984	4.495261619248564
1985	5.82518948371148
1986	4.831078879501193
1987	4.491725275370499
1988	4.399910965187617
1989	4.950898693605933
1990	5.286099666614686
1991	4.4309461939518044
1992	4.33842855309366
1993	4.744712763082983
1994	5.714873681874042
1995	6.323034522212802
1996	6.471170842344984
1997	5.9117453405489355
1998	5.245163314353374
1999	4.3195174893497335
2000	5.960457903985515
2001	5.555861060297215
2002	5.956370485209463
2003	5.646758613656028
2004	5.883529723339177
2005	7.649108788600057
2006	8.394228265825284
2007	9.868632389402851
2008	11.49789920710049
2009	6.664221667344635
2010	8.127929203088739
2011	9.926167282801567
2012	8.67312078682171
2013	7.388308015130444
2014	6.068506661952053
2015	4.043888207212247
2016	4.3081816442417225
2017	5.069414103854163
2018	5.170879024773457
2019	4.52028228351316
2020	3.7768527236257103
2021	6.300426416142326