Year	% of GNI
1998	30.1144044431871
1999	30.7899487691389
2000	31.7231950151364
2001	30.9130275089146
2002	30.8737423511193
2003	32.3365607199192
2004	31.6337450231214
2005	32.7676949421966
2006	34.1704226553671
2007	33.3498186708973
2008	34.0204331141426
2009	30.8070018491033
2010	30.2515878832667
2011	28.9115789845988
2012	26.4164432391011
2013	25.0740406801414
2014	24.7047549882985
2015	24.4069645330081
2016	24.8374291564811
2017	25.5405209114619
2018	24.5631820546722
2019	22.8809643271085
2020	24.4591940173995
2021	26.9862779513089