Year	% of commercial service imports
1977	7.146214745175652
1978	6.072320617620354
1979	7.946240554936256
1980	5.227138860256224
1981	6.214959307582996
1982	5.7766770266770235
1983	5.750661756243537
1984	6.992071357779975
1985	7.149300089350269
1986	7.920250688763203
1987	8.31427322303781
1988	7.88476392777836
1989	8.013845010221154
1990	8.899331524257093
1991	8.999606040709176
1992	8.438029713829895
1993	7.976716610973416
1994	7.911392405063304