
COBRE: DILEMAS CENTRALES. Patricio Meller. %. %. Fuente : World Bamk (1987), World Bureau of Metal Statistics. Décadas 60-70: 500.000 Ton. 20 años Década 80 : 500.000 Ton. 10 años Década 90 : 500.000 Ton. 2 años. Fuente:COCHILCO, Cálculos del autor. %.
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