Year	% of GNI
1990	2.507208780102124
1991	2.859622271210394
1992	2.8255723285430268
1993	2.932564697560092
1994	2.7724984908645443
1995	2.7005865902397175
1996	2.557830502671656
1997	2.575897624341559
1998	2.7424410073862218
1999	2.8926303683507992
2000	2.8997480466186056
2001	3.1477092831575333
2002	3.4006279494452296
2003	3.5174885505624935
2004	3.469148455640834
2005	3.366210060386326
2006	3.231340667799483
2007	2.9437830000559577
2008	2.6099685799529064
2009	2.8025317587212895
2010	2.575895644425258
2011	2.4225783547908057
2012	2.424736863976308
2013	2.4675647873103985
2014	2.470863618181745
2015	2.6158083639581595
2016	2.6989864611300924
2017	2.6125746421053493
2018	2.6538899283834185
2019	2.7569210105160282
2020	2.84667402499143
2021	2.6501309181068877