Commodity2005200620072008200920102011
Copper waste & scrap$44,872,125$72,156,873$63,099,647$60,216,698$48,917,144$75,011,026$82,943,022
Total$44,872,125$72,156,873$63,099,647$60,216,698$48,917,144$75,011,026$82,943,022