Year	% of GNI
1990	4.156123896235272
1991	4.05510610742804
1992	3.850406944907426
1993	3.6896777454825265
1994	3.455444179550021
1995	3.2575341499237016
1996	3.0655882092948636
1997	2.9797185750588873
1998	2.8079017414737133
1999	2.5899046947270605
2000	2.5521028925338305
2001	2.399326623747556
2002	2.270712980118735
2003	2.096679308356421
2004	1.9336286239443643
2005	1.8116683944213383
2006	1.7127955037160398
2007	1.6361591704964382
2008	1.6536603727248347
2009	1.5889871459699116
2010	1.5271640511585762
2011	1.521824087284452
2012	1.5168039652485124
2013	1.4727190829084766
2014	1.390761782497461
2015	1.349484288742378
2016	1.2836378471616994
2017	1.2264301761069785
2018	1.199254818374893
2019	1.1883929790031869
2020	1.2794208371611704
2021	1.197693131678468