Year	% of commercial service exports
1977	19.620379620379666
1978	3.3216619981325817
1983	3.2679738562091014
1984	0.7686309457502508
1985	2.6757441418619226
1986	3.8159484494562896
1987	0.6906077348066287
1988	2.368513323983169
1989	1.3471101779202128
1990	0.21909233176838772
1991	4.022722896206441
1992	2.8040173724212947
1993	7.285810658871153
1994	1.7314351673720614