SOUTHERN PERU COPPER CORPORATION 46. SOUTHERN PERU COPPER CORPORATION 47. Trucks at the dumping zone in Cuajone  Mnemonic  Period  Open  Close  Low High  Average PCU1BC32  200401 100.15  100.15   100.15  100.15   100.15 PCU1BC32  200402  PCU1BC32  200403  PCU1BC32  200404  PCU1BC32  200405  PCU1BC32  200406  PCU1BC32  200407  PCU1BC32  200408  PCU1BC32  200409 102.83  102.82   102.83  102.83   102.83 PCU1BC32  200410  PCU1BC32  200411  PCU1BC32  200412   Mnemonic  Period  Open  Close  Low High  Average PCU1BC22  200401  PCU1BC22  200402  PCU1BC22  200403 108.00  109.25  108.00  109.25  108.63 PCU1BC22  200404  PCU1BC22  200405  PCU1BC22  200406  PCU1BC22  200407  PCU1BC22  200408  PCU1BC22  200409  PCU1BC22  200410  PCU1BC22  200411  PCU1BC22  200412   Mnemonic  Period  Open  Close  Low High  Average `PCU1BC31  200401  PCU1BC31  200402  PCU1BC31  200403 96.11  98.12   96.11  98.12   97.11 PCU1BC31  200404  PCU1BC31  200405  PCU1BC31  200406  PCU1BC31  200407  PCU1BC31  200408  PCU1BC31  200409  PCU1BC31  200410  PCU1BC31  200411  PCU1BC31  200412 