Year	% of merchandise imports
1962	58.50749914727113
1966	54.87691902553951
1970	53.47493092845303
1971	50.39179723483442
1972	64.56277531572144
1973	68.43442707183061
1974	67.31291068441023
1975	63.352407548311916
1976	61.93679218935378
1977	67.49204209298114
1978	67.58671448566636
1979	67.577730538712
1980	62.04142121575009
1981	70.45829180742584
1982	54.69317336342237