Year	% of GNI
1990	4.710246231279062
1991	4.888184169156833
1992	4.79915872290484
1993	5.004489626453215
1994	4.55167048819725
1995	4.327648155966175
1996	3.956920211005497
1997	4.0896737309896745
1998	4.744670219339411
1999	4.4140223151816445
2000	4.429280188629483
2001	4.583042755012511
2002	4.599076433555734
2003	4.838484557924479
2004	5.006570959509307
2005	5.124360563701164
2006	4.884950261784268
2007	4.373181529394395
2008	3.691908194272033
2009	3.746025185798467
2010	3.4988292143310322
2011	3.2724206435155816
2012	3.129184023643703
2013	3.092356957403678
2014	2.988501428075341
2015	2.958787146238382
2016	3.0002867256291204
2017	2.9233055449884553
2018	2.873220724962684
2019	2.966011602116033
2020	2.948799945145816
2021	2.7336573388111667