Year	% of GNI
1970	12.3701105694682
1971	12.6194970765538
1972	12.9037854696968
1973	13.0464560798205
1974	13.6548099328315
1975	14.2185784599023
1976	14.391399107921
1977	14.6465062460017
1978	14.0172993033661
1979	14.0781578166572
1980	14.7134049072696
1981	15.1055194301262
1982	15.3271798047127
1983	15.3907780415905
1984	15.3847686796904
1985	15.2091546235786
1986	14.9408806642363
1987	15.0088087297052
1988	14.8685097779454
1989	14.8958022122801
1990	15.0853091265008
1991	15.6907995441549
1992	15.6484004672333
1993	15.8030898450065
1994	15.6442826911725
1995	15.4088184081456
1996	15.2997031469168
1997	15.1350632540169
1998	14.8876170686214
1999	14.8534474088996
2000	15.0544994013681
2001	15.2298980837826
2002	15.532294043703
2003	15.6489494375971
2004	15.7096219619426
2005	15.9132652561967
2006	16.1465958843436
2007	16.2565412895721
2008	16.7987617553411
2009	17.4597429409977
2010	17.3449504210245
2011	17.3746421720626
2012	17.6399817265005
2013	17.625791598108
2014	17.6455215208136
2015	17.4506625111859
2016	17.5490457835053
2017	17.6242346727958
2018	17.7739014543779
2019	18.0494414953122
2020	19.4880548241781
2021	18.7693324732186