Year	% of GNI
1980	1.33212263187833
1981	1.108795141584
1982	1.77258712563591
1983	1.0120736661957
1984	0.68516571710165
1985	0.590570760803239
1986	0.471443310640384
1987	0.785062506495487
1988	0.679292641368634
1989	0.667767330211723
1990	0.581327849276406
1991	0.544489490444745
1992	0.488043551622604
1993	0.447298909841101
1994	0.411053868133368
1995	0.501142880749274
1996	0.423007970051885
1997	0.40765564349912
1998	0.34333055655357103
1999	0.2946880878123595
2000	0.21554293720842468
2001	0.21736668968163916
2002	0.2269423980575776
2003	0.22499956374400168
2004	0.202340089784052
2005	0.20381323841649082
2006	2.230803472797515
2007	3.055925552972347
2008	4.8923321288579835
2009	3.2056347926721145
2010	4.315053114585967
2011	5.673409619781237
2012	3.8259150364503207
2013	2.583659372061213
2014	1.909280601078882
2015	0.7659022552818979
2016	0.666669399579468
2017	0.671248614765687
2018	0.68182571082705
2019	0.498543292775872
2020	0.430928874942561
2021	0.40371664156960696