Year	% of GNI
1971	22.79058742545257
1972	22.950609933318745
1973	24.10451658530711
1974	23.864659971670438
1975	22.358245100255647
1976	22.96377496118005
1977	22.951451409497558
1978	23.47754863533378
1979	23.696078818450992
1980	22.996809499696873
1981	22.811729102569316
1982	21.306032268135255
1983	20.53282687721365
1984	21.875874009819906
1985	21.025476384221534
1986	20.627570725438265
1987	20.979373967285238
1988	21.82597155517105
1989	21.711200754950834
1990	21.236491974024485
1991	20.50903381839955
1992	19.93297107083549
1993	19.575483735986634
1994	20.556870108136582
1995	21.674482360173833
1996	24.03953800481294
1997	24.21802737095404
1998	23.981336305843005
1999	23.664122670645103
2000	23.971407840459158
2001	22.83174457891326
2002	21.986376363644908
2003	21.772017879780726
2004	22.4218259139766
2005	22.78969514923627
2006	23.44100860484861
2007	23.24402778084156
2008	22.14571195025332
2009	19.727262524389843
2010	21.136909838555784
2011	22.162519917661275
2012	22.571905985551155
2013	22.577625291317606
2014	22.993184158810255
2015	22.968692209277314
2016	22.666445835919102
2017	23.35685790466525
2018	23.623999122249593
2019	23.56532061867468
2020	22.986923902792338
2021	23.205201909186943