Year	% of commercial service exports
1977	9.719626168224272
1978	9.733866759436394
1979	4.8733583489681385
1980	16.28828828828828
1981	7.013986013986038
1982	7.234733650931119
1983	9.28201332346416
1984	11.289449954914282
1985	13.382942186605607
1986	15.281479013990676
1987	12.828431372549018
1988	25.04870428230108
1989	16.746131325805067
1990	18.836963417212953
1991	27.777299160025816
1992	30.476190476190602
1993	19.576939029448432