Commodity2005200620072008200920102011
Unrefined copper; copper anodes for electrolytic refining$422,749,641$931,662,235$1,122,419,394$912,944,056$389,188,230$201,384,341$5,888,903
Total$422,749,641$931,662,235$1,122,419,394$912,944,056$389,188,230$201,384,341$5,888,903