Year	% of GNI
1970	3.2007523313537236
1971	3.179972694904858
1972	3.28240225280139
1973	3.314502562799476
1974	3.0744497213191213
1975	3.3492469056166008
1976	3.3277216132310636
1977	3.099114223588569
1978	3.181589582065895
1979	3.1757212091725653
1980	2.8410095823132093
1981	3.2964716774257337
1982	3.6981285664841312
1983	3.947852198449855
1984	3.7613595478449846
1985	3.6086823348778605
1986	3.392907886735077
1987	3.685189247405475
1988	3.483183360204622
1989	3.6147985877498945
1990	3.711675921631784
1991	3.661862595188838
1992	3.99046770474425
1993	4.003014771863492
1994	4.562776951739765
1995	4.829997972036274
1996	5.0528628891004255
1997	4.93030055248139
1998	3.429704545896355
1999	3.363892929925703
2000	3.2474769397041965
2001	3.38108618664904
2002	3.3383392912426717
2003	3.29252137704548
2004	3.380160802527204
2005	3.4347264473825994
2006	3.4987484904134023
2007	3.571244270789137
2008	3.3041438630046622
2009	3.662065311613434
2010	3.645736043746075
2011	3.501086775634565
2012	3.609915811353808
2013	3.540694100147567
2014	3.5419382677193365
2015	2.4676705799906857
2016	2.51421406865065
2017	2.6729100421440397
2018	2.6953002566903805
2019	2.6753440527345385
2020	2.672525648558559
2021	2.7845993050825495