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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Ash & residues (excl. from the mfr. of iron/steel), cont. hard zinc spelter ... | $16,199,000 | $36,487,000 | $41,444,000 | $20,186,000 | $9,607,000 | $17,092,026 | $18,311,694 |
| Ash & residues (excl. from the mfr. of iron/steel), cont. zinc other than h ... | $10,025,000 | $18,749,000 | $23,369,000 | $16,401,000 | $6,923,000 | $12,319,878 | $21,938,043 |
| Ash & residues (excl. from the mfr. of iron/steel) cont. mainly copper | $32,990,000 | $62,016,000 | $95,753,000 | $64,324,000 | $47,096,000 | $81,826,037 | $120,615,606 |
| Ash & residues (excl. from the mfr. of iron/steel) cont. mainly aluminium | $77,583,000 | $111,971,000 | $130,660,000 | $114,190,000 | $51,352,000 | $85,388,587 | $110,829,729 |
| Total | $136,797,000 | $229,223,000 | $291,226,000 | $215,101,000 | $114,978,000 | $196,626,528 | $271,695,072 |
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