Year	% of GNI
1990	1.249610578319596
1991	2.3955828951281912
1992	2.520748062617977
1993	3.460524794784635
1994	3.7044498225918447
1995	3.3455142308339907
1996	3.0817332637269184
1997	3.2547771006898243
1998	3.1555473200436364
1999	3.1599788971932976
2000	3.215613005170272
2001	3.482628684758772
2002	3.78283730003092
2003	3.711166544803629
2004	3.4777997401701555
2005	3.3708878357760788
2006	3.149016332212619
2007	2.7690239807764114
2008	2.4121862277466977
2009	2.689236291287607
2010	2.466930150459808
2011	2.303752594361651
2012	2.3260804123296515
2013	2.697104189939445
2014	2.9099436892455124
2015	3.3297217948491165
2016	3.38893122928612
2017	3.713161165696985
2018	4.185328099380385
2019	4.447238701066621
2020	4.930936472965181
2021	4.692121081079509