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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Copper foil, whether or not printed, not backed with paper/paperboard/plact ... | $73,726,227 | $133,218,300 | $133,857,171 | $123,313,890 | $65,612,519 | $108,832,405 | $143,576,997 |
| Copper foil, whether or not printed, not backed with paper/paperboard/plact ... | $21,343,674 | $32,825,736 | $26,128,970 | $27,161,518 | $12,657,242 | $21,966,995 | $27,391,182 |
| Copper foil, whether or not printed, backed with paper/paperboard/plactics/ ... | $52,030,399 | $58,026,233 | $51,978,588 | $44,948,020 | $31,686,570 | $44,857,847 | $39,927,436 |
| Copper foil, whether or not printed, backed with paper/paperboard/plactics/ ... | $1,117,603 | $1,142,842 | $2,564,387 | $506,349 | $475,384 | $510,745 | $893,517 |
| Total | $148,217,903 | $225,213,111 | $214,529,116 | $195,929,777 | $110,431,715 | $176,167,992 | $211,789,132 |
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