Year	% of commercial service exports
1977	74.76246105918989
1978	69.74082449121566
1979	44.46998123827417
1980	44.072072072072054
1981	61.37762237762262
1982	59.46080554352514
1983	70.21465581051119
1984	64.13886384129836
1985	61.717229536348086
1986	41.197534976682284
1987	34.37745098039212
1988	32.45910678184158
1989	39.820158929318275
1990	50.86064707126249
1991	33.51927632995903
1992	36.190476190476275
1993	34.07299875570317