Year % of GNI 1980 10.0608682492996 1981 8.88971693462684 1982 7.03245855152259 1983 4.79866513013098 1984 5.56145059418629 1985 6.53482203661993 1986 4.39643931488351 1987 4.943629344841 1988 3.36587634415356 1989 4.75852863278584