Year	% of GNI
1989	26.807620596164725
1990	22.774733265277767
1991	19.850012850404873
1992	20.114256446031938
1993	19.624917205925783
1994	18.474676162788477
1995	22.92813354993178
1996	25.088831288758524
1997	23.534077318757845
1998	23.21549111430719
1999	26.71902487492103
2000	26.141224682294034
2001	22.364026755449732
2002	24.619989523662518
2003	24.409874472177304
2004	24.829958181472495
2005	22.10247515515441
2006	24.93306677668467
2007	27.317298856469016
2008	25.459794163067397
2009	26.46043892915268
2010	25.0061332813347