Commodity2005200620072008200920102011
Copper waste & scrap$8,286,574$12,306,391$12,284,865$13,560,452$6,653,263$7,844,348$17,553,552
Total$8,286,574$12,306,391$12,284,865$13,560,452$6,653,263$7,844,348$17,553,552