Year	% of GNI
1976	40.26036044010789
1977	36.683517604311376
1978	25.330299491815897
1979	28.451122212612013
1980	22.018533533402003
1989	18.50484391723303
1990	23.248736058826942
1993	35.712834315155845
1994	35.648850964228664
1995	35.38270716767443
1996	40.3589816787046
1997	36.21369088974313
1998	29.427431551572745
1999	36.69427969513945
2000	37.869884304489005