Year	% of GNI
1990	0.7000344774546258
1991	0.6731760584221381
1992	0.6825151268214905
1993	0.6631198583078303
1994	0.6487596280264915
1995	0.6207857400609995
1996	0.6019298342619138
1997	0.5793800191824833
1998	0.5846517525595325
1999	0.5954737280054458
2000	0.5402525451145855
2001	0.5189184454083384
2002	0.4935463795350402
2003	0.4592031271651453
2004	0.42394344144932866
2005	0.3981806020231675
2006	0.3689354733928704
2007	0.34998023335200074
2008	0.34618839842607096
2009	0.3701896317045676
2010	0.35864523288131644
2011	0.3479207070633151
2012	0.3496645982161144
2013	0.351064294005162
2014	0.3537605023061312
2015	0.3789340226742604
2016	0.38109856586302177
2017	0.36905487101976614
2018	0.36957853547793673
2019	0.37028247548548143
2020	0.3941658390206836
2021	0.38467299636767893