Year	% of GNI
1977	-8.13374070342023
1978	-8.36374024958208
1979	-7.59406471176386
1980	-14.1718447579016
1981	-4.78117969635474
1982	-11.570915297277
1983	-5.50360298150809
1984	-4.74411414633678
1985	0.882508215068213
1986	-2.43044714452072
1987	-3.8975544444836
1988	-1.00275717637129
1989	1.2579467188239
1990	0.139209068413656
1991	-1.37665331578503
1992	-1.31311736290005
1993	1.29922407267476
1994	6.22862771142394