Year	% of merchandise imports
1962	0.27410313237144956
1966	0.4225235938023404
1970	0.7717774807556157
1971	2.2134847420131267
1972	0.38678507802802087
1973	0.5580334088930116
1974	0.6632791046193018
1975	1.298375269893619
1976	1.4336541650057246
1977	0.3869593029104378
1978	0.45821766163446975
1979	0.25345306461987754
1980	0.24352733266187784
1981	0.06811633024832882
1982	0.4356825040053252