Year	% of GNI
1990	4.8988448327169625
1991	4.963470281183942
1992	3.9081894028790973
1993	3.7545708929957025
1994	3.7175578244052314
1995	3.4999919711405942
1996	3.2384080150976273
1997	3.077469583436617
1998	2.9650604875043336
1999	2.8862186888008132
2000	2.8359101646262457
2001	2.8143441415606243
2002	2.74510036647067
2003	2.661637257778274
2004	2.5521458576754057
2005	2.4778385326578687
2006	2.343620380764088
2007	2.2623559593018547
2008	2.140103997339846
2009	2.044131836996778
2010	1.9340286224798529
2011	1.8743456392219395
2012	1.7626172572251724
2013	1.743463424911679
2014	1.6454507009579677
2015	1.5735661862485342
2016	1.5006298124357085
2017	1.4427309107244601
2018	1.3843415214355368
2019	1.3369308398778614
2020	1.3270878454248933
2021	1.2538983821976117