Year	% of GNI
1990	0.9752290458118865
1991	0.8835866065213992
1992	0.8482286154178635
1993	0.7925413996343529
1994	0.7400086684906851
1995	0.7269620209403692
1996	0.6938515932271048
1997	0.6598839762572469
1998	0.6385533406186449
1999	0.634251787522444
2000	0.5910457338956714
2001	0.5691711301616748
2002	0.5546874509779754
2003	0.5269187644202905
2004	0.4903407273492795
2005	0.4591345683761499
2006	0.4292004696601198
2007	0.4035563967297261
2008	0.40158480739754604
2009	0.4167955781996463
2010	0.40146854936539866
2011	0.3963134544121062
2012	0.39680225135406644
2013	0.39664249666260115
2014	0.39429134177894204
2015	0.41044519688309794
2016	0.41116047793940075
2017	0.40017295434990424
2018	0.4021931776326783
2019	0.4019709547165926
2020	0.42572225459748736
2021	0.4114709494282753