Year	% of GNI
1990	4.710246231279061
1991	4.888184169156835
1992	4.799158722904841
1993	5.004489626453216
1994	4.5516704881972485
1995	4.327648155966176
1996	3.956920211005497
1997	4.089673730989676
1998	4.74467021933941
1999	4.414022315181644
2000	4.42911370154428
2001	4.582865484219038
2002	4.598914166233625
2003	4.838350344265495
2004	5.0064417993461605
2005	5.124229685162192
2006	4.884851420588843
2007	4.37311767940806
2008	3.691871242615743
2009	3.745995470391867
2010	3.4988058003721045
2011	3.2723985781666096
2012	3.129157251070973
2013	3.0923364965993563
2014	2.9884829325415923
2015	2.958765350761133
2016	3.0002678444595223
2017	2.9232984398630766
2018	2.87321050609771
2019	2.9660034399215633
2020	2.948795893673142
2021	2.7336528117987444