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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Ash & residues (excl. from the mfr. of iron/steel), cont. hard zinc spelter ... | $317,191 | $1,206,711 | $441,818 | | | |
| Ash & residues (excl. from the mfr. of iron/steel), cont. zinc other than h ... | $67,248 | $415,516 | $134,071 | | $76,763 | $1,040,488 |
| Ash & residues (excl. from the mfr. of iron/steel) cont. mainly copper | $112,431 | | | | $2,014 | $1,872 |
| Ash & residues (excl. from the mfr. of iron/steel) cont. mainly aluminium | | | | $730 | | |
| Total | $496,870 | $1,622,227 | $575,889 | $730 | $78,777 | $1,042,360 |
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