Year	% of merchandise imports
1962	16.367769878283045
1963	16.24094516449137
1964	14.853405664139668
1965	13.248191020258677
1966	12.920670990398776
1967	15.554006627858769
1968	13.285812622912427
1969	20.87265899630968
1970	20.625057416052506
1971	19.58739403645719
1972	24.241726617016678
1973	27.89117076767356
1974	23.300102743502148
1975	14.515227053303045
1995	24.272914642359538