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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 ... | $2,736,774 | $5,648,247 | $8,999,817 | $2,945,686 | $1,044,711 | $2,309,124 | $5,734,582 |
| Ash & residues (excl. from the mfr. of iron/steel), cont. zinc other than h ... | $1,482,206 | $3,235,660 | $8,449,610 | $4,416,567 | $5,278,192 | $10,150,285 | $10,230,655 |
| Ash & residues (excl. from the mfr. of iron/steel) cont. mainly copper | $6,961,779 | $11,966,315 | $15,437,359 | $13,089,213 | $5,001,268 | $3,090,709 | $20,633,040 |
| Ash & residues (excl. from the mfr. of iron/steel) cont. mainly aluminium | $7,229,000 | $10,772,010 | $19,432,410 | $9,058,541 | $2,366,630 | $2,784,972 | $4,019,900 |
| Total | $18,409,759 | $31,622,232 | $52,319,196 | $29,510,007 | $13,690,801 | $18,335,090 | $40,618,177 |
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