Year	% of GNI
1971	13.743685706072764
1972	12.225199322371447
1973	23.527977717744506
1974	19.041922964337104
1975	8.330558196922173
1976	10.499580928711818
1977	9.570315521659335
1978	7.458801638894409
1979	11.52335007912273
1980	11.283336957967814
1981	6.257725580742059
1982	5.359194400706949
1983	6.831494801244452
1984	5.590145363315081
1985	6.234000615927838
1986	8.58445206656811
1987	9.180530706420905
1988	12.542490411378175
1989	14.040456063673256
1990	14.799563735942412
1991	6.057734198863282
1992	6.225192096822463
1993	5.3667106828799955
1994	5.785412685136411
1995	7.653815078910205
1996	7.7998029595343
1997	6.116529949947586
1998	7.819867939995512
1999	5.423323459475655
2000	9.14717319978519
2001	6.495188742286088
2002	7.483251713577219
2003	10.399668681964444
2004	9.922834267656357
2005	9.691199908929189
2006	11.857526121970011
2007	13.549169230545678
2008	9.098918518394209
2009	8.582608084155273
2010	9.980783997128801
2011	7.670716973498418
2012	4.925051780529804
2013	4.425347818634634
2014	2.958620250572244
2015	1.8694879692282556
2016	1.923112807169427
2017	3.2782851667184034
2018	4.354432792840828
2019	1.3241591299606479
2020	5.601292219370841
2021	21.04307741085767