Year	% of GNI
1980	6.314425406210579
1981	6.172548446477133
1982	5.656865727704054
1983	5.8630991811699396
1984	5.442604870914219
1985	4.865955525659635
1986	5.41582038160812
1987	5.067332232791896
1988	4.487717240042941
1989	5.018582193113823
1990	5.74641896678596
1991	4.867924714880196
1992	4.164297030964921
1993	4.501056527918703
1994	4.82482186325483
1995	3.9687974224729063
1996	3.664721093111173
1997	3.204092426371453
1998	2.7802727598254515
1999	2.432258398033566
2000	2.183384262754385
2001	2.169408464075537
2002	2.1911818865249892
2003	1.871781600047658
2004	1.7686826114971583
2005	1.6728008102781033
2006	1.6296309257590247
2007	1.7671664515094827
2008	2.0810067415701248
2009	2.272655576866254
2010	2.352747309522931
2011	2.032134320051703
2012	1.9315998264814398
2013	1.8640315480098806
2014	1.553614743246471
2015	1.4551642229193373
2016	1.34897950038346
2017	1.5046877312033393
2018	1.502524611807905
2019	1.5117869244140432
2020	2.3371685201163017
2021	2.004145293517806