Year	% of GNI
1990	2.6519714994766073
1991	4.441954617198708
1992	5.027675859006423
1993	5.015535956676927
1994	5.078513977189895
1995	4.662670335783358
1996	4.726037029852439
1997	4.232743423110673
1998	4.1537529656885495
1999	3.90617492946684
2000	3.399699056323135
2001	3.7693957084215395
2002	4.216129758135569
2003	4.4020574661102945
2004	3.5864983094775402
2005	3.0516961167726055
2006	2.634770577678712
2007	2.1868909744736684
2008	1.5500530689928473
2009	1.6591408866456767
2010	1.5733768471267313
2011	1.6631663850610354
2012	1.6012607326342667
2013	1.6302375250125907
2014	1.539391159903193
2015	1.7527510026593482
2016	2.039962701947448
2017	2.050644659959572
2018	2.0252589756155013
2019	2.049130882139133
2020	2.153132835326686
2021	2.157330655048949