Year	% of GNI
1988	22.7175258960762
1989	22.0382150044856
1990	22.4789543318282
1991	22.1864137845225
1992	23.6561093435402
1993	25.0439460865469
1994	23.3908830950041
1995	23.0652170499295
1996	21.5742258311283
1997	19.333204870164
1998	17.6738644474872
1999	16.5845291086848
2000	15.4700445017543
2001	14.4052566541062
2002	13.0267669977204
2003	12.5369517030034
2004	12.1009196227583
2005	11.090027684784
2006	10.7411149719637
2007	11.2406302603939
2008	12.462571908285
2009	14.9430695460239
2010	17.0169902917842
2011	18.8536283115536
2012	23.7318779486727
2013	19.7843803006273
2014	17.3910197283422
2015	14.6975307508396
2016	13.4906142696583
2017	12.1922159896371
2018	10.4423921536166
2019	10.6081348400433
2020	9.93604478458996
2021	9.1388110241444