Year	% of GNI
1990	1.607282476950053
1991	1.661395612182298
1992	1.689876703137489
1993	1.7706532479109904
1994	1.8484798808525684
1995	1.9477817293119832
1996	1.9483933096952435
1997	1.987368432048632
1998	2.1415798980225866
1999	2.172997291457567
2000	2.170111530257458
2001	2.337607544339494
2002	2.574666253985238
2003	2.5166420733826667
2004	2.4019359854198936
2005	2.2640382079361707
2006	2.189085251158132
2007	2.054074736425715
2008	1.9708066571483605
2009	2.172221678513858
2010	1.9449071800260913
2011	1.8858224018496217
2012	1.9732487975250783
2013	2.0501885234977366
2014	2.1655294975646724
2015	2.378883888808983
2016	2.431160565475863
2017	2.4413336470370957
2018	2.5897979674551013
2019	2.6732599062725795
2020	2.7952696158610637
2021	2.691932828236061