Year	% of merchandise imports
1963	6.974958603528182
1967	6.534760483317823
1970	6.3656538082199035
1971	7.298794431318474
1972	6.737424339580915
1973	7.608188695639805
1974	19.55752829498683
1975	14.595776714830377
1976	14.906759813802987
1977	14.856234515440079
1978	17.57829383565873
1979	20.371014916734694
1980	28.478312683168188
1981	27.074870567225318
1982	26.869744368158855
1983	17.374633289963544
1984	19.74779617352906