Year	% of GNI
1989	21.661443589458347
1990	25.859615599187453
1991	15.936950612857363
1992	17.640556401352715
1993	17.987287266748925
1994	16.867287355028697
1995	15.587866447768034
1996	17.713619704752933
1997	17.34714439306824
1998	11.806178768689666
1999	15.924018457278152
2000	23.667974379393673
2001	18.766515428862835
2002	17.44445405420077
2003	19.547156161309466
2004	21.0577571952165
2005	24.722548031963406
2006	27.686786475176465
2007	25.0544927512217
2008	22.498628461427177
2009	15.91651378114153
2010	18.712135164369514
2011	21.51519025028544
2012	17.95787700916243
2013	14.291538315889651
2014	14.510910003221115
2015	12.253289153068256
2016	9.836340132406857
2017	10.712330932491591
2018	14.815319619086896
2019	13.9264690048572
2020	9.249048251348254
2021	16.087494294009318