Year	% of GNI
1975	25.282505878466967
1976	22.760251594082614
1977	23.215267342011764
1978	23.84381610545492
1979	22.807239441620588
1980	20.748908022324187
1981	18.827032957207273
1982	18.916941851327348
1983	18.791657565363355
1984	20.49877702975327
1985	21.16166075422145
1986	22.070189002367755
1987	21.962764897498953
1988	23.16087885487136
1989	22.542039473930547
1990	22.053449294917677
1991	21.43362016558354
1992	19.57870769755874
1993	19.34446432271521
1994	19.10618331210421
1995	21.490407805881485
1996	21.2999677877016
1997	22.333229561776584
1998	22.99454332706299
1999	22.492728319370784
2000	22.489985700858256
2001	22.39156625067169
2002	23.227258380859656
2003	23.82460549539153
2004	23.022529265275406
2005	22.432795947009932
2006	22.124938427650523
2007	21.542483603218976
2008	20.119024430166867
2009	19.599480361367313
2010	18.919048764414278
2011	18.17624162350149
2012	18.66627535415774
2013	19.383007756000975
2014	19.649832733775447
2015	21.01280995998461
2016	21.865903242326496
2017	22.167699633475273
2018	22.314220216085495
2019	22.893974803057418
2020	21.03553080132632
2021	22.17391897164409
2022	21.989827178972572
2023	23.01160666971668