Year	% of GNI
1979	20.897185861195776
1980	22.995428244414338
1981	21.702153169585106
1982	19.906536371114147
1983	19.0710753932913
1984	21.543970512573775
1985	22.84887368899013
1986	18.64981313590281
1987	20.927224292754076
1988	20.066674779090498
1989	26.423191047624584
1990	19.749391458274616
1991	18.351031186312213
1992	17.73111178039252
1993	19.244483220756642
1994	19.36714950097557
1995	18.007240975190985
1996	18.090231058536762
1997	18.330043598364185
1998	18.17660467629192
1999	18.159991827984438
2000	18.67862076160004
2001	18.190250671442104
2002	19.114326251957348
2003	19.2327438184387
2004	21.257277586708366
2005	21.213475278717343
2006	22.951606604240805
2007	22.95040543310762
2008	22.60157074963737
2009	19.86391457346924
2010	21.343684121775613
2011	21.238183519226
2012	20.36201494439675
2013	19.28637618981453
2014	17.873585198322527
2015	18.087188751243605
2016	17.866222165367983
2017	17.75125565250492
2018	17.69401147428329
2019	17.970495006120178
2020	19.443830478348886
2021	20.672287915808923