Year	% of GNI
1977	19.59957575448
1978	17.4984745833218
1979	16.1093705962269
1980	14.0453896816685
1981	10.6867113513561
1982	9.78798532398768
1983	8.71516190728019
1984	7.7131484367171
1985	9.07332438181752
1986	10.1677928895966
1987	7.86201058028438
1988	8.67375540861648
1989	9.38568995636274
1990	10.4650240557715
1991	12.484750099358
1992	11.6419194739654
1993	11.1364642335662
1994	10.9135081411547
1995	11.2721998628399
1996	9.92633491495316
1997	10.2509225830286
1998	12.1190630174369
1999	11.9227024732453
2000	12.6163395512166
2001	10.0211971814371
2002	13.9371193854946
2003	14.5517290757697
2004	15.9453480900158
2005	14.0565680185444
2006	14.6941069847916
2007	14.8272968714475
2008	11.7989681146423
2009	13.0556735990422
2010	11.9509077332308
2011	11.4470822723418
2012	11.8024676556274
2013	11.8766770651677
2014	12.0879604887426
2015	13.9075957306955
2016	15.150810411706
2017	15.1006258047699
2018	14.9731023903893
2019	16.9468298966538
2020	18.5945907987995
2021	19.6133494990497