Year	% of GNI
1990	1.3492809623024993
1991	1.6576830162492564
1992	1.5846369864818315
1993	1.5204149449514497
1994	1.5051118818913232
1995	1.32543067185101
1996	1.1865199453012045
1997	1.1357131721825626
1998	1.0674694346403857
1999	1.0150141959117895
2000	0.9166013854095882
2001	0.8779647008031967
2002	0.8095239991406354
2003	0.7645617520351997
2004	0.6991706164115995
2005	0.6617936386319291
2006	0.6172349779553366
2007	0.5754300686532587
2008	0.5493126365113726
2009	0.5602105029434048
2010	0.5439492248668999
2011	0.5453920574224307
2012	0.537535147524967
2013	0.5502865709513841
2014	0.538423142724234
2015	0.566548334813558
2016	0.5286884136048186
2017	0.4925559186495924
2018	0.4953184364859537
2019	0.49026807408950174
2020	0.5297687494760622
2021	0.5035160086811308