Labels:hakham | train OCR: PREVI The engineers excavated about 161 million cubic meters fill The total cost of the Panama canal to the US 1913 380 million dollars. The US paid Panama 250 thousand dollars per year up 1936 for use of the Canal Zone From 1936 until 1955 the US paid Panama 430 thousand dollars per year for use the Canal Zone LESSONS HELP MXET abou OOPTS
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