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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 ... | $6,307,000 | $18,936,000 | $15,236,000 | $4,769,000 | $7,016,000 | $6,867,561 | $6,560,235 |
| Ash & residues (excl. from the mfr. of iron/steel), cont. zinc other than h ... | $17,784,000 | $69,763,000 | $66,714,000 | $34,738,000 | $42,467,000 | $69,942,327 | $28,263,649 |
| Ash & residues (excl. from the mfr. of iron/steel) cont. mainly copper | $11,557,000 | $12,562,000 | $12,326,000 | $20,095,000 | $14,796,000 | $25,860,349 | $48,619,826 |
| Ash & residues (excl. from the mfr. of iron/steel) cont. mainly aluminium | $15,438,000 | $25,234,000 | $16,504,000 | $10,992,000 | $3,403,000 | $5,278,866 | $20,919,705 |
| Total | $51,086,000 | $126,495,000 | $110,780,000 | $70,594,000 | $67,682,000 | $107,949,103 | $104,363,415 |
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