Year	% of GNI
1964	0.00872854363408448
1965	0.0410095698525461
1966	0.0418778506474697
1967	0.0363133694136043
1968	0.025
1969	0.00568181818181818
1970	0.00504032258064516
1972	0.00398724082934609
1974	0.00900630441308916
1975	0.00544069640914037
1976	0.00728862973760933
1977	0.0167961368885156
1978	0.0315581854043392
1979	0.0278499814333457
1980	0.0428134556574924
1981	0.0264317191262618
1982	0.00844900455083663
1983	0.00744918616406721
1984	0.00760890241582652
1985	0.0846541786743516
1986	0.00723821816249474
1987	0.0171156413935102
1988	0.00275843051394371
1989	0.00662032453614723
1990	2.62147373693655
1991	-0.286251445909422
1992	-0.29728282923298
1993	-0.264487840565518
1994	-0.667651001086183
1995	-0.102310343852788