Year	% of GNI
1990	15.3675161447174
1991	12.6519703041547
1992	9.24030149787194
1993	6.55827464183503
1994	13.5776599942035
1995	17.0670188159111
1996	16.8602208172925
1997	16.8799516026475
1998	16.8976763567019
1999	16.9914340773829
2000	17.5520590836342
2001	17.1934916861239
2002	16.0550175200413
2003	17.561497298715
2004	18.3663601977456
2005	18.4832376164252
2006	20.6356540576191
2007	21.7547991678553
2008	20.6628789655271
2009	15.4583288074034
2010	17.4031954628296
2011	17.5426972516073
2012	17.1666474542492
2013	16.913627164643
2014	17.184419810534
2015	17.4759878619669
2016	17.3126087782218
2017	18.2827731028946
2018	18.0683904804151
2019	19.6581804324538
2020	19.6410057135243
2021	19.753713446822