Year	% of GNI
1975	25.3321541803469
1976	25.0882576287216
1977	24.8968434565347
1978	24.9532600437419
1979	24.9303158031308
1980	24.1750201245366
1981	21.8562491805265
1982	20.745334679326
1983	20.4730002615292
1984	20.3048533207284
1985	20.2203461239143
1986	21.3783400871421
1987	21.2113107413271
1988	22.5380768100579
1989	23.1273562081248
1990	23.2463653589685
1991	22.9007761587317
1992	22.2917340743157
1993	21.1352234286777
1994	21.2840946057065
1995	21.8022221690904
1996	21.5787650120892
1997	22.5248888653225
1998	23.5494338443273
1999	24.0149163972182
2000	23.4678664835227
2001	23.5164854369577
2002	22.5178533352894
2003	21.9470541357782
2004	22.2444745392564
2005	22.0858876211003
2006	22.8505730927355
2007	23.2861631696733
2008	22.9412229100443
2009	20.5004518316141
2010	20.6090604608065
2011	21.5426298197696
2012	20.9966296654916
2013	20.9211606922355
2014	21.0330698451056
2015	21.784416351091
2016	21.5502098874389
2017	22.2500609286637
2018	22.6322228762005
2019	23.2703495528038
2020	21.1101323670729
2021	23.6676820530824