Year	% of GNI
1970	14.7832566221939
1971	14.4569870055667
1972	15.4786895058405
1973	15.0630218477294
1974	15.1750669446878
1975	15.0696398074087
1976	14.8021432741834
1977	14.8015674767791
1978	14.8771292634983
1979	14.9128350685604
1980	15.0356467701858
1981	15.0677914723117
1982	15.1109043536857
1983	15.1474644371858
1984	15.1584811088519
1985	15.1301138786463
1986	15.1536710799307
1987	16.697221173372
1988	17.2626108534413
1989	16.1466460946004
1990	15.3906831836894
1991	15.7744309032371
1992	15.6474526705991
1993	15.2139941123043
1994	16.6807282980085
1995	16.0257287996736
1996	15.8055347286884
1997	15.5309648790063
1998	15.6176580615596
1999	16.3846736484268
2000	16.0717785827592
2001	18.1508025738345
2002	18.4072376594445
2003	17.2963558779316
2004	16.5997938917154
2005	16.0289824815261
2006	15.7545269969
2007	15.7239583756589
2008	15.7343204932362
2009	16.421431590086
2010	15.1232959506268
2011	14.4709900643925
2012	14.6127873474472
2013	14.2232705712864
2014	14.6701485460687
2015	14.8382529147819
2016	15.2188887433207
2017	15.4012206289629
2018	14.2049975970737
2019	15.5875891823564
2020	15.4175953670796
2021	15.3338026147073