Year	% of GNI
1990	15.794778071092
1991	14.2306138865787
1992	13.6789369274965
1993	12.4002613728283
1994	14.3215444121919
1995	13.832883074851
1996	14.8386212423503
1997	16.1088306615541
1998	19.6089067630104
1999	25.632030255335
2000	24.002958807775
2001	24.4272355572599
2002	24.9706658213354
2003	24.9474967356231
2004	22.7580972393314
2005	23.770503124352
2006	23.4338978784687
2007	21.9720893431659
2008	22.7456062023997
2009	24.4295302819114
2010	25.519648922815
2011	23.0907477350259
2012	22.8448270713282
2013	23.9549664622746
2014	24.5816902899663
2015	23.9109316390168
2016	23.646479018576
2017	23.9286457951043
2018	22.2619003691315
2019	19.9159312935531
2020	13.6207770128426
2021	8.36106773717828