Year	% of GNI
1971	5.84716557566054
1972	5.36831690560138
1973	7.26543586001948
1974	7.27038388993283
1975	8.26398805940371
1976	7.17067351693105
1977	11.9786422470203
1978	9.87187337928564
1979	7.16010771709341
1980	7.32688046645654
1981	7.435035519307555
1982	10.166598259822704
1983	8.367205289592146
1984	8.81081165773197
1985	7.03928894524885
1986	7.3252701128627065
1987	6.5422365775913685
1988	6.595542879016823
1989	7.534847451825697
1990	7.155203928483268
1991	6.767589160721986
1992	9.10892104526921
1993	5.705985813567428
1994	9.19598110901891
1995	9.211914422379479
1996	8.28233831272049
1997	7.956555086549819
1998	7.536064317656887
1999	3.158392698208826
2000	3.27238422542651
2001	1.7146704313128434
2002	0.4734897109095959
2003	0.000347505015402044
2004	0.000282870033479082
2005	0.000426455157784285
2006	0.00133191406668968
2007	0.00102713034916243
2008	0.00113241338764731
2009	0.00139053517593506
2010	0.00191783887731589
2011	0.0029390344237074
2012	0.00266812586603441
2013	0.00159958315019326
2014	0.00123000903383622
2015	0.0364671303689086
2016	0.0363644198885848
2017	0.0618964640118426
2018	0.0813960890703062
2019	0.0679965430244873
2020	0.030002195419226
2021	0