Year	% of GNI
1990	2.5521817901710095
1991	5.264226065542409
1992	3.999358420376828
1993	3.9586449073381056
1994	3.9530830716576513
1995	3.3817188714868402
1996	3.1646198357264064
1997	2.818900638631263
1998	2.741656536394359
1999	2.468938785897191
2000	2.3162618574248857
2001	2.434005587821504
2002	2.414443728233193
2003	2.4886975090632486
2004	2.2716577603816743
2005	2.1255653637675107
2006	1.9648002202819452
2007	1.851846824524061
2008	2.770170849277623
2009	2.578411860214817
2010	2.4470652655214558
2011	2.186664503661217
2012	2.042853396628183
2013	2.0233446077437747
2014	1.899702091372036
2015	1.8825410884824678
2016	1.7924082667943346
2017	1.689501352981445
2018	1.618785529434609
2019	1.5759368812977634
2020	1.6006857729528725
2021	1.473005623148005