Year	% of GNI
1975	23.12481510068398
1976	23.508511100592287
1977	23.187493725165712
1978	23.55761501064133
1979	23.385235162937455
1980	22.40722043797774
1981	20.777387456403382
1982	20.50784630218521
1983	20.697454604090805
1984	21.221557513070533
1985	21.34098613046427
1986	22.22047790197128
1987	21.77484706187399
1988	22.764437133993262
1989	23.088446761931163
1990	23.33174596323584
1991	22.624222355402857
1992	21.987217274672524
1993	21.5419531500014
1994	21.828471486544714
1995	22.71697878437779
1996	22.430829169130938
1997	22.948434012916312
1998	23.278079903111678
1999	22.93391227355738
2000	22.81628342744768
2001	22.781426092792753
2002	22.655207214920082
2003	22.175728700045738
2004	22.942308426083454
2005	22.87472991604538
2006	23.660340124300124
2007	24.362664673359397
2008	23.136942329334442
2009	20.815976987276287
2010	21.426080451010648
2011	22.195589085715174
2012	21.94010360843182
2013	22.174635383918652
2014	22.85117433737568
2015	23.675566004400547
2016	24.141720511835512
2017	24.734502212657528
2018	25.177429766724245
2019	25.536733230792876
2020	24.672868995397263
2021	26.587916404884986
2022	25.22708007487004
2023	25.577107344303208