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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Nails, tacks, drawing pins, staples (excl. of 83.05) & sim. arts., of coppe ... | $10,804 | $17,085 | $44,327 | $26,197 |
| Washers (incl. spring washers) of copper | $5,758 | $20,177 | $20,193 | $28,619 |
| Non-threaded arts. (e.g., rivets, cotters), of copper (excl. of 7415.10 & 7 ... | $14,158 | $20,066 | $37,581 | $17,149 |
| Threaded arts. of copper (excl. of 7415.33) | $118,470 | $83,515 | $44,693 | $32,484 |
| Total | $149,190 | $140,843 | $146,794 | $104,449 |
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